From 7971711fbb50d11525a865b994d191dea41730af Mon Sep 17 00:00:00 2001
From: Benoit Pierre <benoit.pierre@gmail.com>
Date: Sun, 4 Oct 2026 13:26:17 +0200
Subject: [PATCH 1/4] willuslib: fix `bmp_crop_ex` initial bitmap copy

---
 willuslib/bmp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/willuslib/bmp.c b/willuslib/bmp.c
index 5c32264..24bb59d 100644
--- a/willuslib/bmp.c
+++ b/willuslib/bmp.c
@@ -1471,9 +1471,9 @@ void bmp_crop_ex(WILLUSBITMAP *dst,WILLUSBITMAP *src,int x0,int y0_from_top,int
     dst->type=src->type;
     dst->bpp=src->bpp;
     bmp_alloc(dst);
-    memcpy(dst->red,src->red,256);
-    memcpy(dst->green,src->green,256);
-    memcpy(dst->blue,src->blue,256);
+    memcpy(dst->red,src->red,sizeof(int)*256);
+    memcpy(dst->green,src->green,sizeof(int)*256);
+    memcpy(dst->blue,src->blue,sizeof(int)*256);
     bpr=bmp_bytewidth(dst);
     for (i=0;i<height;i++)
         {

From 85ddaee552576ce02a68d3fa7a119dcffc0afc04 Mon Sep 17 00:00:00 2001
From: Benoit Pierre <benoit.pierre@gmail.com>
Date: Sun, 4 Oct 2026 13:26:18 +0200
Subject: [PATCH 2/4] willuslib: reduce `WILLUSBITMAP` size

Palette RGB entries don't need to be more than 8bits.
---
 willuslib/bmp.c    | 12 ++++++------
 willuslib/willus.h |  6 +++---
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/willuslib/bmp.c b/willuslib/bmp.c
index 24bb59d..66cab14 100644
--- a/willuslib/bmp.c
+++ b/willuslib/bmp.c
@@ -1471,9 +1471,9 @@ void bmp_crop_ex(WILLUSBITMAP *dst,WILLUSBITMAP *src,int x0,int y0_from_top,int
     dst->type=src->type;
     dst->bpp=src->bpp;
     bmp_alloc(dst);
-    memcpy(dst->red,src->red,sizeof(int)*256);
-    memcpy(dst->green,src->green,sizeof(int)*256);
-    memcpy(dst->blue,src->blue,sizeof(int)*256);
+    memcpy(dst->red,src->red,256);
+    memcpy(dst->green,src->green,256);
+    memcpy(dst->blue,src->blue,256);
     bpr=bmp_bytewidth(dst);
     for (i=0;i<height;i++)
         {
@@ -1672,9 +1672,9 @@ int bmp_copy(WILLUSBITMAP *dest,WILLUSBITMAP *src)
     if (!bmp_alloc(dest))
         return(0);
     memcpy(dest->data,src->data,src->height*bmp_bytewidth(src));
-    memcpy(dest->red,src->red,sizeof(int)*256);
-    memcpy(dest->green,src->green,sizeof(int)*256);
-    memcpy(dest->blue,src->blue,sizeof(int)*256);
+    memcpy(dest->red,src->red,256);
+    memcpy(dest->green,src->green,256);
+    memcpy(dest->blue,src->blue,256);
     return(1);
     }
 
diff --git a/willuslib/willus.h b/willuslib/willus.h
index fe49617..2b70dbc 100644
--- a/willuslib/willus.h
+++ b/willuslib/willus.h
@@ -509,9 +509,9 @@ int arrayf_ifft(float *xr,float *xi,int n);
 #define WILLUSBITMAP_TYPE_WIN32        1
 typedef struct
     {
-    int     red[256];
-    int     green[256];
-    int     blue[256];
+    unsigned char  red[256];
+    unsigned char  green[256];
+    unsigned char  blue[256];
     unsigned char *data;  /* Top to bottom in native type, bottom to */
                           /* top in Win32 type.                      */
     int     width;      /* Width of image in pixels */

From b1576b6dbe15ae4fbc3da4b609a78efdd9b5c80b Mon Sep 17 00:00:00 2001
From: Benoit Pierre <benoit.pierre@gmail.com>
Date: Sun, 4 Oct 2026 13:26:20 +0200
Subject: [PATCH 3/4] disable some unused code

---
 k2pdfoptlib/k2file.c     |  2 +-
 k2pdfoptlib/k2master.c   |  8 ++++++++
 k2pdfoptlib/k2ocr.c      | 11 +++++++----
 k2pdfoptlib/k2pdfopt.h   | 23 +++++++++++++++++++++++
 k2pdfoptlib/k2proc.c     | 12 ++++++++++++
 k2pdfoptlib/k2settings.c | 20 ++++++++++++++++++--
 lib/setting.c            |  2 ++
 willuslib/filelist.c     |  3 +++
 willuslib/wsys.c         | 11 +++++++++++
 9 files changed, 85 insertions(+), 7 deletions(-)

diff --git a/k2pdfoptlib/k2file.c b/k2pdfoptlib/k2file.c
index 6d9eec0..44d9d44 100644
--- a/k2pdfoptlib/k2file.c
+++ b/k2pdfoptlib/k2file.c
@@ -1815,6 +1815,7 @@ void k2file_get_info(char *filename,int *pagelist,char **buf)
         }
     }
 
+#if 0
 
 int k2file_get_num_pages(char *filename)
 
@@ -1832,7 +1833,6 @@ int k2file_get_num_pages(char *filename)
     }
 
 
-#if 0
 void k2file_get_overlay_bitmap(WILLUSBITMAP *bmp,double *dpi,char *filename,char *pagelist)
 
     {
diff --git a/k2pdfoptlib/k2master.c b/k2pdfoptlib/k2master.c
index a649b65..b4eb598 100644
--- a/k2pdfoptlib/k2master.c
+++ b/k2pdfoptlib/k2master.c
@@ -1647,6 +1647,7 @@ ocrwords_to_easyplot(ocrwords,"postsort.ep",0,NULL);
     if (k2settings->dst_negative)
         bmp_invert(bmp);
 
+#if 0
     /* Fix colors */
 /*
     if ((k2settings->dst_fgtype!=4 && k2settings->dst_bgtype!=4)
@@ -1664,6 +1665,7 @@ ocrwords_to_easyplot(ocrwords,"postsort.ep",0,NULL);
                               k2settings->dst_bgtype,
                               0,0,bmp->width-1,bmp->height-1);
         }
+#endif
 
 
     /* Write sequence of OCR'd words if debugging */
@@ -2876,8 +2878,10 @@ printf("@k2master_rows_color:  %d x %d\n",srcbmp->width,srcbmp->height);
 printf("region %d:  (%d,%d) - (%d,%d)\n",j,subregion->c1,subregion->r1,subregion->c2,subregion->r2);
 */
         bmpregion_find_textrows(subregion,k2settings,0,1,-1.0,0);
+#if 0
         nfg=k2settings_ncolors(k2settings->dst_fgcolor);
         nbg=k2settings_ncolors(k2settings->dst_bgcolor);
+#endif
 /*
 printf("nc=%d, rcindex=%d\n",nc,masterinfo->rcindex);
 printf("TEXTROWS.n=%d\n",region->textrows.n);
@@ -2891,12 +2895,14 @@ printf("TEXTROW[%2d]=%d\n",i,region->textrows.textrow[i].type);
             textrow=&subregion->textrows.textrow[i];
             if (textrow->type==REGION_TYPE_TEXTLINE)
                 {
+#if 0
                 if (k2settings->dst_fgtype==4)
                     strcpy(fgc,k2settings_color_by_index(k2settings->dst_fgcolor,
                                                          masterinfo->rcindex%nfg));
                 if (k2settings->dst_bgtype==4)
                     strcpy(bgc,k2settings_color_by_index(k2settings->dst_bgcolor,
                                                          masterinfo->rcindex%nbg));
+#endif
                 masterinfo->rcindex++;
                 /* For some reason if it's a single text line, need to re-calc bbox. */
                 /* Should investigate why at some point... */
@@ -2917,6 +2923,7 @@ printf("TEXTROW[%2d]=%d\n",i,region->textrows.textrow[i].type);
                 }
             }
         }
+#if 0
     if (k2settings->dst_fgtype!=4)
         strcpy(fgc,k2settings->dst_fgcolor);
     else
@@ -2929,6 +2936,7 @@ printf("TEXTROW[%2d]=%d\n",i,region->textrows.textrow[i].type);
         bmp_change_colors(region->bmp,bmpmask,fgc,k2settings_color_type(fgc),
                                               bgc,k2settings_color_type(bgc),
                                          0,0,region->bmp->width-1,region->bmp->height-1);
+#endif
     pageregions_free(pageregions);
     bmp_free(bmpmask);
     if (srcbmp->bpp!=8)
diff --git a/k2pdfoptlib/k2ocr.c b/k2pdfoptlib/k2ocr.c
index 87d2d77..a0aa4a6 100644
--- a/k2pdfoptlib/k2ocr.c
+++ b/k2pdfoptlib/k2ocr.c
@@ -301,14 +301,14 @@ static void k2ocr_status_line(char *buf,char *color,char *label,char *string)
     strcat(buf,"\n");
     }
 
-#endif
-
 void k2ocr_tesslang_selected(char *lang,int maxlen,K2PDFOPT_SETTINGS *k2settings)
 
     {
     xstrncpy(lang,ocrtess_lang_by_index(k2settings->dst_ocr_lang,0),maxlen);
     }
 
+#endif
+
 
 static void k2ocr_tesslang_init(char *lang,int assume_yes)
 
@@ -378,9 +378,9 @@ static void k2ocr_tesslang_init(char *lang,int assume_yes)
             k2printf(TTEXT_NORMAL " ... download successful." TTEXT_NORMAL "\n");
         }
     }
-            
 
-    
+#if 0
+
 static void *otinit(void *data)
 
     {
@@ -423,6 +423,9 @@ static void *otinit(void *data)
     pthread_exit(NULL);
     return(NULL);
     }
+
+#endif
+
 #endif
 
 #if 0
diff --git a/k2pdfoptlib/k2pdfopt.h b/k2pdfoptlib/k2pdfopt.h
index 0c609f0..4ddf1b0 100644
--- a/k2pdfoptlib/k2pdfopt.h
+++ b/k2pdfoptlib/k2pdfopt.h
@@ -124,6 +124,11 @@
 #endif
 #endif
 
+#undef HAVE_DJVU_LIB
+#undef HAVE_GOCR_LIB
+#undef HAVE_MUPDF_LIB
+#undef HAVE_OCR_LIB
+
 /* Compile w/Windows GUI? */
 #if (defined(HAVE_WIN32_API) && !defined(K2PDFOPT_KINDLEPDFVIEWER))
 #define HAVE_K2GUI
@@ -266,10 +271,12 @@ typedef struct
     char show_usage[32];
     int src_left_to_right;
     int src_whitethresh;
+#if 0
     char dst_fgcolor[MAXFILENAMELEN];
     char dst_fgtype; /* 0=none, 1=gray, 2=color, 3=bitmap */
     char dst_bgcolor[MAXFILENAMELEN];
     char dst_bgtype; /* 0=none, 1=gray, 2=color, 3=bitmap */
+#endif
     int src_paintwhite; /* Paint everything above src_whitethresh white */
     int text_only; /* Do not send figures to output file */
 
@@ -331,9 +338,11 @@ typedef struct
     int dst_sharpen;
     int dst_color;
     int dst_bpc;
+#if 0
     int dst_landscape;
     char dst_landscape_pages[1024];
     char dst_opname_format[MAXFILENAMELEN];
+#endif
     int src_autostraighten;
     /*
     double dst_mar;
@@ -372,12 +381,14 @@ typedef struct
     int text_wrap;
     double word_spacing; /* Negative for auto */
     double display_width_inches; /* Device width = dst_width / dst_dpi */
+#if 0
     char pagelist[1024];
     char pagexlist[1024]; /* exclude these pages */
     char bpl[2048];  /* Page break list--see -bpl option */
     int use_toc;
     char toclist[2048];
     char tocsavefile[MAXFILENAMELEN];
+#endif
     int column_fitted;
     double dpi_org;
     double contrast_max;
@@ -405,7 +416,9 @@ typedef struct
     /* v2.35--change overlap from int to double */
     double src_grid_overlap_percentage;
     /*int src_grid_order;*/ /* 0=down then across, 1=across then down */
+#if 0
     K2CROPBOXES cropboxes; /* Crop boxes */
+#endif
     K2NOTESET noteset;
     /*
     ** Preview options
@@ -429,8 +442,10 @@ typedef struct
     int info;    /* 1 = info only about source files */
     int pagebreakmark_breakpage_color;  /* v2.33, #RRGGBB, 0 = no mark */
     int pagebreakmark_nobreak_color;    /* v2.33, #RRGGBB, 0 = no mark */
+#if 0
     char dst_author[256];
     char dst_title[256];
+#endif
     /* v2.34 */
     double dst_fontsize_pts; /* 0=not used */
     int assume_yes; /* 1 = assume yes to overwrite */
@@ -992,7 +1007,11 @@ int  k2settings_output_is_bitmap(K2PDFOPT_SETTINGS *k2settings);
 int k2settings_columns_left_to_right(K2PDFOPT_SETTINGS *k2settings);
 int k2settings_valid_grid_order(K2PDFOPT_SETTINGS *k2settings);
 K2NOTES *page_has_notes_margin(K2PDFOPT_SETTINGS *k2settings,MASTERINFO *masterinfo);
+#if 0
 int  k2pdfopt_settings_landscape(K2PDFOPT_SETTINGS *k2settings,int pageno,int maxpages);
+#else
+# define k2pdfopt_settings_landscape(...)  0
+#endif
 void k2pdfopt_conversion_init(K2PDFOPT_CONVERSION *k2conv);
 void k2pdfopt_conversion_close(K2PDFOPT_CONVERSION *k2conv);
 void k2pdfopt_settings_copy(K2PDFOPT_SETTINGS *dst,K2PDFOPT_SETTINGS *src);
@@ -1015,9 +1034,13 @@ void k2pdfopt_settings_set_margins_and_devsize(K2PDFOPT_SETTINGS *k2settings,
                          double src_fontsize_pts,int trimmed);
 char *k2pdfopt_settings_unit_string(int units);
 void k2pdfopt_settings_clear_cropboxes(K2PDFOPT_SETTINGS *k2settings,int flagmask,int flagtype);
+#if 0
 void k2cropboxes_init(K2CROPBOXES *cropboxes);
 int  k2cropboxes_count(K2CROPBOXES *cropboxes,int flagmask,int flagtype);
 int  k2settings_has_cropboxes(K2PDFOPT_SETTINGS *k2settings);
+#else
+# define k2settings_has_cropboxes(S)  0
+#endif
 int  k2settings_need_color_initially(K2PDFOPT_SETTINGS *k2settings);
 int  k2settings_need_color_permanently(K2PDFOPT_SETTINGS *k2settings);
 int  k2settings_ncolors(char *s);
diff --git a/k2pdfoptlib/k2proc.c b/k2pdfoptlib/k2proc.c
index c1bacf5..c68776c 100644
--- a/k2pdfoptlib/k2proc.c
+++ b/k2pdfoptlib/k2proc.c
@@ -85,6 +85,7 @@ void k2proc_init_one_document(void)
     bmpregion_vertically_break(NULL,NULL,NULL,0.,0,0,NULL);
     }
 
+#if 0
 
 /*
 ** Determine median font size (based on row heights) in a region.
@@ -139,6 +140,7 @@ printf("Calling bmpregion_find_textrows for font size eval\n");
     bmpregion_free(region);
     }
 
+#endif
 
 /*
 ** First break the source page into cropboxes and/or gridded rectangles based
@@ -154,6 +156,7 @@ void bmpregion_source_page_add(BMPREGION *region,K2PDFOPT_SETTINGS *k2settings,
                                MASTERINFO *masterinfo,int level,int pages_done)
 
     {
+#if 0
     PAGEREGIONS *pageregions,_pageregions;
     int i,gridded;
 
@@ -189,8 +192,12 @@ void bmpregion_source_page_add(BMPREGION *region,K2PDFOPT_SETTINGS *k2settings,
         bmpregion_source_box_process(&pageregions->pageregion[i].bmpregion,
                                      k2settings,masterinfo,level,pages_done); 
     pageregions_free(pageregions);
+#else
+    bmpregion_source_box_process(region, k2settings, masterinfo, level, pages_done);
+#endif
     }
 
+#if 0
 
 void bmpregion_add_cover_image(BMPREGION *coverimage,K2PDFOPT_SETTINGS *k2settings,
                                MASTERINFO *masterinfo)
@@ -264,6 +271,7 @@ void bmpregion_add_cover_image(BMPREGION *coverimage,K2PDFOPT_SETTINGS *k2settin
     bmpregion_free(newregion);
     }
 
+#endif
 
 /*
 ** Process a rectangular source page bitmap determined from either a cropbox or
@@ -485,6 +493,7 @@ printf("Restoring DPI?\n");
     pageregions_free(pageregions);
     }
 
+#if 0
 
 /*
 ** Set up gridded pageregion array
@@ -786,6 +795,7 @@ static void bmpregion_set_cropbox_pixels(BMPREGION *dstregion,K2CROPBOX *cropbox
         dstregion->r2=srcregion->bmp8->height-1;
     }
 
+#endif
 
 /*
 ** Return sorted list (by display order) of page regions up to appropriate level
@@ -2499,6 +2509,7 @@ region_height_inches);
 #if (WILLUSDEBUGX & 1)
 printf("Added_region.force_scale = %g\n",added_region.force_scale);
 #endif
+#if 0
     if (added_region.force_scale < -1.5 && region_width_inches > MIN_REGION_WIDTH_INCHES
                          && region_width_inches/k2settings->max_region_width_inches < 1.25
                          && region_height_inches > 0.5)
@@ -2510,6 +2521,7 @@ printf("Added_region.force_scale = %g\n",added_region.force_scale);
         added_region.allow_text_wrapping = 0;
         }
     else
+#endif
         revert=0;
 #if (WILLUSDEBUGX & 0x201)
 k2printf("Entering vert region loop, %d regions.\n",n);
diff --git a/k2pdfoptlib/k2settings.c b/k2pdfoptlib/k2settings.c
index c691280..41bc245 100644
--- a/k2pdfoptlib/k2settings.c
+++ b/k2pdfoptlib/k2settings.c
@@ -97,9 +97,11 @@ void k2pdfopt_settings_init(K2PDFOPT_SETTINGS *k2settings)
     k2settings->dst_fulljustify=-1; // 0 = no, 1 = yes
     k2settings->dst_sharpen=1;
     k2settings->dst_bpc=4;
+#if 0
     k2settings->dst_landscape=0;
     k2settings->dst_landscape_pages[0]='\0'; /* v2.32 */
     strcpy(k2settings->dst_opname_format,"%s_k2opt");
+#endif
     k2settings->src_autostraighten=0;
     k2settings->dstmargins.pagelist[0]='\0';
     k2settings->dstmargins.cboxflags=0;
@@ -127,7 +129,9 @@ void k2pdfopt_settings_init(K2PDFOPT_SETTINGS *k2settings)
     k2settings->text_wrap=1;
     k2settings->word_spacing=-0.20;
     k2settings->display_width_inches = 3.6; /* Device width = dst_width / dst_dpi */
+#if 0
     k2settings->pagelist[0]='\0';
+#endif
     k2settings->column_fitted=0;
     k2settings->contrast_max = 2.0;
     k2settings->dst_gamma=0.5;
@@ -174,12 +178,14 @@ void k2pdfopt_settings_init(K2PDFOPT_SETTINGS *k2settings)
     k2settings->dst_width = k2settings->dst_userwidth;
     k2settings->dst_height = k2settings->dst_userheight;
 
+#if 0
     /* v2.10 */
     k2settings->use_toc = -1;
     k2settings->toclist[0]='\0';
     k2settings->tocsavefile[0]='\0';
     k2settings->bpl[0]='\0';
     k2cropboxes_init(&k2settings->cropboxes);
+#endif
 
     /* v2.13 */
     k2settings->devsize_set=0;
@@ -191,11 +197,13 @@ void k2pdfopt_settings_init(K2PDFOPT_SETTINGS *k2settings)
     k2settings->restore_last_settings=-1;
 #endif
 
+#if 0
     /* v2.22 */
     k2settings->dst_fgcolor[0]='\0';
     k2settings->dst_bgcolor[0]='\0';
     k2settings->dst_fgtype=0;
     k2settings->dst_bgtype=0;
+#endif
 
     /* v2.31 */
 #ifdef HAVE_GHOSTSCRIPT
@@ -212,9 +220,11 @@ void k2pdfopt_settings_init(K2PDFOPT_SETTINGS *k2settings)
     k2settings->pagebreakmark_breakpage_color=-1;
     k2settings->pagebreakmark_nobreak_color=-1;
     k2settings->erase_horizontal_lines=0;
+#if 0
     k2settings->pagexlist[0]='\0';
     k2settings->dst_author[0]='\0';
     k2settings->dst_title[0]='\0';
+#endif
 
     /* v2.34 */
     k2settings->dst_fontsize_pts=0.; /* 0 = not used */
@@ -315,6 +325,7 @@ K2NOTES *page_has_notes_margin(K2PDFOPT_SETTINGS *k2settings,MASTERINFO *masteri
     return(NULL);
     }
 
+#if 0
 
 /*
 ** Should the current source page be turned to landscape mode?
@@ -339,8 +350,6 @@ printf("    retval=%d\n",retval);
 #endif
     return(retval);
     }
-    
-#if 0
 
 void k2pdfopt_conversion_init(K2PDFOPT_CONVERSION *k2conv)
 
@@ -465,6 +474,7 @@ void k2pdfopt_settings_quick_sanity_check(K2PDFOPT_SETTINGS *k2settings)
     if (k2settings->text_wrap>0 || k2settings_output_is_bitmap(k2settings))
         k2settings->use_crop_boxes=0;
 
+#if 0
     /*
     ** v2.22: If -colorfg or -colorbg not grayscale, turn color output on.
     */
@@ -488,6 +498,7 @@ void k2pdfopt_settings_quick_sanity_check(K2PDFOPT_SETTINGS *k2settings)
             if (k2settings_color_type(k2settings_color_by_index(k2settings->dst_bgcolor,i))==2)
                 k2settings->dst_color=1;
         }
+#endif
 
     /* v2.22: If previewing a native PDF, turn color output on. */
     if (!k2settings->dst_color && k2settings->use_crop_boxes && k2settings->preview_page!=0)
@@ -631,6 +642,7 @@ printf("restore:  dst_dpi=%d\n",k2settings->dst_dpi);
 #endif
     }
 
+#if 0
 
 void k2pdfopt_settings_fit_column_to_screen(K2PDFOPT_SETTINGS *k2settings,
                                             double column_width_inches)
@@ -658,6 +670,7 @@ printf("fit_column_to_screen: dst_dpi=%d\n",k2settings->dst_dpi);
     k2settings->column_fitted=1;
     }
 
+#endif
 
 /*
 ** Set device width and height in pixels.
@@ -1035,6 +1048,8 @@ void k2cropbox_set_default_values(K2CROPBOX *cbox,double value,int units)
     }
 */
 
+#if 0
+
 /*
 ** Clear cropboxes that have flags set to flagtype
 */
@@ -1092,6 +1107,7 @@ int k2settings_has_cropboxes(K2PDFOPT_SETTINGS *k2settings)
                       K2CROPBOX_FLAGS_NOTUSED|K2CROPBOX_FLAGS_IGNOREBOXEDAREA,0)>0);
     }
 
+#endif
 
 int k2settings_need_color_initially(K2PDFOPT_SETTINGS *k2settings)
 
diff --git a/lib/setting.c b/lib/setting.c
index 8c6fe80..2732acc 100644
--- a/lib/setting.c
+++ b/lib/setting.c
@@ -42,7 +42,9 @@ void k2pdfopt_settings_init_from_koptcontext(K2PDFOPT_SETTINGS *k2settings, cons
     k2settings->dst_userheight = 800;
     k2settings->dst_width = k2settings->dst_userwidth;
     k2settings->dst_height = k2settings->dst_userheight;
+#ifdef HAVE_OCR_LIB
     k2settings->dst_ocr = 0;
+#endif
     k2settings->dst_color = 0;
     k2settings->use_crop_boxes = 0;
     k2settings->defect_size_pts = 1.0;
diff --git a/willuslib/filelist.c b/willuslib/filelist.c
index 1283e4e..f8b15cb 100644
--- a/willuslib/filelist.c
+++ b/willuslib/filelist.c
@@ -2705,6 +2705,7 @@ void filelist_reslash(FILELIST *fl)
         wfile_reslash(fl->entry[i].name);
     }
 
+#if 0
 
 /*
 ** Fill from unix-style archive (.a) file
@@ -2845,3 +2846,5 @@ entry->name);
         willus_mem_free((double **)&namebuf,funcname);
     return(0);
     }
+
+#endif
diff --git a/willuslib/wsys.c b/willuslib/wsys.c
index c89409b..f4d7762 100644
--- a/willuslib/wsys.c
+++ b/willuslib/wsys.c
@@ -57,6 +57,7 @@ static void gnu_compiler(char *compiler_version);
 #endif
 static int wsys_decimal_is_period(void);
 
+#if 0
 
 void wsys_system_version(char *system,char *_os,char *_chip,char *_compiler)
 
@@ -338,6 +339,7 @@ void wsys_sleep_ms(int ms)
 #endif
     }
 
+#endif
 
 int wsys_num_cpus(void)
 
@@ -351,6 +353,7 @@ int wsys_num_cpus(void)
 #endif
     }
 
+#if 0
 
 char *wsys_full_exe_name(char *s)
 
@@ -463,6 +466,9 @@ double wsys_year_double(struct tm *date)
                 +date->tm_sec/(365.25*24.*3600.));
     }
 
+#endif
+
+#ifdef K2PDFOPT_DEBUG
 
 double wsys_utc_offset(void)
 
@@ -502,6 +508,9 @@ char *wsys_utc_string(void)
     return(buf);
     }
 
+#endif
+
+#if 0
 
 /*
 ** Call with 1 to set decimal point to a period.
@@ -757,3 +766,5 @@ int wsys_shell_command(char *cmd,char *stdoutfile,char *stderrfile)
     willus_mem_free((double **)&syscmd,funcname);
     return(status);
     }
+
+#endif

From a5b660a89ab860bd1915ec7c5700d8e2b287387c Mon Sep 17 00:00:00 2001
From: Benoit Pierre <benoit.pierre@gmail.com>
Date: Sun, 4 Oct 2026 13:26:21 +0200
Subject: [PATCH 4/4] disable some unused code

---
 k2pdfoptlib/k2file.c | 3 +++
 willuslib/filelist.c | 2 ++
 willuslib/string.c   | 2 ++
 willuslib/wfile.c    | 5 +++++
 4 files changed, 12 insertions(+)

diff --git a/k2pdfoptlib/k2file.c b/k2pdfoptlib/k2file.c
index 44d9d44..2a5b8b8 100644
--- a/k2pdfoptlib/k2file.c
+++ b/k2pdfoptlib/k2file.c
@@ -1675,6 +1675,7 @@ static int toclist_valid(char *s,FILE *out)
     return(0);
     }
 
+#if 0
 
 /*
 ** Create outline from page list
@@ -1713,6 +1714,8 @@ static WPDFOUTLINE *wpdfoutline_from_pagelist(char *pagelist,int maxpages)
     return(outline0);
     }
 
+#endif
+
 
 int get_source_type(char *filename)
 
diff --git a/willuslib/filelist.c b/willuslib/filelist.c
index f8b15cb..d308b48 100644
--- a/willuslib/filelist.c
+++ b/willuslib/filelist.c
@@ -1522,6 +1522,7 @@ static void filelist_conditionally_add_file(FILELIST *fl,wfile *wf,
         }
     }
 
+#if 0
 
 void filelist_filter(FILELIST *fl,char *include[],char *exclude[])
 
@@ -1569,6 +1570,7 @@ void filelist_round_seconds(FILELIST *fl)
         fl->sorted=0;
     }
 
+#endif
 
 int filelist_use_file(char *fullname,char *include_only[],char *exclude[])
 
diff --git a/willuslib/string.c b/willuslib/string.c
index cfc0fb3..91fffcc 100644
--- a/willuslib/string.c
+++ b/willuslib/string.c
@@ -987,6 +987,7 @@ void exp_str(char *buf,int maxlen,int decimals,double value)
     buf[j+2]='\0';
     }
 
+#if 0
 
 /*
 ** Parses most date/time formats.  The key assumption is that the time
@@ -1282,6 +1283,7 @@ int structtm_from_time(struct tm *date,char *time)
     return(0);
     }
 
+#endif
 
 /*
 ** Like strtok, but allows empty "cells".  E.g. if there are consecutive
diff --git a/willuslib/wfile.c b/willuslib/wfile.c
index 5312058..6f5cbf8 100644
--- a/willuslib/wfile.c
+++ b/willuslib/wfile.c
@@ -585,6 +585,7 @@ int wfile_date(const char *filename,struct tm *filedate)
 #endif
     }
 
+#if 0
 
 /*
 ** Add/subtract seconds from date
@@ -749,6 +750,7 @@ void wfile_set_mod_date(char *filename,struct tm *date)
 #endif
     }
 
+#endif
 
 /*
 ** see rpp.c in utility folder!
@@ -789,6 +791,7 @@ int wfile_is_regular_file(char *filename)
 #endif
     }
 
+#if 0
 
 int wfile_saved_during_daylight_savings(char *filename)
 
@@ -956,6 +959,8 @@ int wfile_leap_year(int year)
     return((year%400==0) || ((year%100!=0) && (year%4==0)));
     }
 
+#endif
+
 /*
 ** Set working directory.
 ** Returns 0 for success, otherwise error code.