7 files changed, 6 insertions, 100 deletions
diff --git a/src/Fl_SVG_Image.cxx b/src/Fl_SVG_Image.cxx
index 05b85b942..c30227daa 100644
--- a/src/Fl_SVG_Image.cxx
+++ b/src/Fl_SVG_Image.cxx
@@ -24,12 +24,8 @@
 #include <FL/fl_utf8.h>
 #include <FL/fl_draw.H>
 #include <FL/Fl_Screen_Driver.H>
-#include <FL/Fl_System_Driver.H>
 #include <stdio.h>
 #include <stdlib.h>
-#if defined(HAVE_LIBZ)
-#include <zlib.h>
-#endif
 
 #if !defined(HAVE_LONG_LONG)
 static double strtoll(const char *str, char **endptr, int base) {
@@ -45,8 +41,8 @@ static double strtoll(const char *str, char **endptr, int base) {
 #include "../nanosvg/altsvgrast.h"
 
 
-/** The constructor loads the SVG image from the given .svg/.svgz filename or in-memory data.
- \param filename A full path and name pointing to a .svg or .svgz file, or NULL.
+/** The constructor loads the SVG image from the given .svg filename or in-memory data.
+ \param filename A full path and name pointing to an SVG file, or NULL.
  \param filedata A pointer to the memory location of the SVG image data.
  This parameter allows to load an SVG image from in-memory data, and is used when \p filename is NULL.
  \note In-memory SVG data is modified by the object constructor and is no longer used after construction.
@@ -77,35 +73,6 @@ float Fl_SVG_Image::svg_scaling_(int W, int H) {
   return (f1 < f2) ? f1 : f2;
 }
 
-#if defined(HAVE_LIBZ)
-
-static char *svg_inflate(const char *fname) {
-  struct stat b;
-  fl_stat(fname, &b);
-  long size = b.st_size;
-  gzFile gzf = (gzFile)fl_gzopen(fname, "r");
-  int l;
-  bool direct = gzdirect(gzf);
-  long out_size = direct ? size + 1 : 3*size + 1;
-  char *out = (char*)malloc(out_size);
-  char *p = out;
-  do {
-    if ((!direct) && p + size > out + out_size) {
-      out_size += size;
-      char *tmp = (char*)realloc(out, out_size + 1);
-      p = tmp + (p - out);
-      out = tmp;
-    }
-    l = gzread(gzf, p, size);
-    if (l > 0) {
-      p += l; *p = 0;
-    }
-  } while ((!direct) && l >0);
-  gzclose(gzf);
-  if (!direct) out = (char*)realloc(out, (p-out)+1);
-  return out;
-}
-#endif
 
 void Fl_SVG_Image::init_(const char *filename, char *filedata, Fl_SVG_Image *copy_source) {
   if (copy_source) {
@@ -121,29 +88,22 @@ void Fl_SVG_Image::init_(const char *filename, char *filedata, Fl_SVG_Image *cop
   average_weight_ = 1;
   proportional = true;
   if (filename) {
-#if defined(HAVE_LIBZ)
-    filedata = svg_inflate(filename);
-#else
     filedata = NULL;
     FILE *fp = fl_fopen(filename, "rb");
     if (fp) {
       fseek(fp, 0, SEEK_END);
-      long size = ftell(fp);
+      size_t size = ftell(fp);
       fseek(fp, 0, SEEK_SET);
       filedata = (char*)malloc(size+1);
       if (filedata) {
-        if (fread(filedata, 1, size, fp) == size) {
-          filedata[size] = '\0';
-        }
+        if (fread(filedata, 1, size, fp) == size) filedata[size] = '\0';
         else {
           free(filedata);
           filedata = NULL;
         }
       }
       fclose(fp);
-    }
-#endif // HAVE_LIBZ
-    if (!filedata) ld(ERR_FILE_ACCESS);
+    } else ld(ERR_FILE_ACCESS);
   }
   if (filedata) {
     counted_svg_image_->svg_image = nsvgParse(filedata, "px", 96);
diff --git a/src/drivers/Posix/Fl_Posix_System_Driver.H b/src/drivers/Posix/Fl_Posix_System_Driver.H
index 9ef8a2909..5b2060283 100644
--- a/src/drivers/Posix/Fl_Posix_System_Driver.H
+++ b/src/drivers/Posix/Fl_Posix_System_Driver.H
@@ -75,7 +75,6 @@ public:
   virtual const char *home_directory_name() { return ::getenv("HOME"); }
   virtual int dot_file_hidden() {return 1;}
   virtual void gettime(time_t *sec, int *usec);
-  virtual void* gzopen(const char *fname, const char *mode);
 };
 
 #endif // FL_POSIX_SYSTEM_DRIVER_H
diff --git a/src/drivers/Posix/Fl_Posix_System_Driver.cxx b/src/drivers/Posix/Fl_Posix_System_Driver.cxx
index f603c2d17..c2576b268 100644
--- a/src/drivers/Posix/Fl_Posix_System_Driver.cxx
+++ b/src/drivers/Posix/Fl_Posix_System_Driver.cxx
@@ -34,9 +34,6 @@
 #include <pwd.h>
 #include <unistd.h>
 #include <time.h>
-#if defined(HAVE_LIBZ)
-# include <zlib.h>
-#endif
 
 //
 // Define missing POSIX/XPG4 macros as needed...
@@ -102,18 +99,6 @@ void Fl_Posix_System_Driver::gettime(time_t *sec, int *usec) {
   *usec = tv.tv_usec;
 }
 
-void* Fl_Posix_System_Driver::gzopen(const char *fname, const char *mode) {
-#if defined(HAVE_LIBZ)
-  FILE *in = fl_fopen(fname, mode);
-  if (!in) return NULL;
-  int fd = dup(fileno(in));
-  fclose(in);
-  return gzdopen(fd, mode);
-#else
-  return NULL;
-#endif
-}
-
 //
 // End of "$Id$".
 //
diff --git a/src/drivers/WinAPI/Fl_WinAPI_System_Driver.H b/src/drivers/WinAPI/Fl_WinAPI_System_Driver.H
index 99b5b0871..43e0f54e2 100644
--- a/src/drivers/WinAPI/Fl_WinAPI_System_Driver.H
+++ b/src/drivers/WinAPI/Fl_WinAPI_System_Driver.H
@@ -117,7 +117,6 @@ public:
   virtual void remove_fd(int, int when);
   virtual void remove_fd(int);
   virtual void gettime(time_t *sec, int *usec);
-  virtual void* gzopen(const char *fname, const char *mode);
 };
 
 #endif // FL_WINAPI_SYSTEM_DRIVER_H
diff --git a/src/drivers/WinAPI/Fl_WinAPI_System_Driver.cxx b/src/drivers/WinAPI/Fl_WinAPI_System_Driver.cxx
index b0a4c52e1..efbe65d01 100644
--- a/src/drivers/WinAPI/Fl_WinAPI_System_Driver.cxx
+++ b/src/drivers/WinAPI/Fl_WinAPI_System_Driver.cxx
@@ -50,9 +50,6 @@ typedef RPC_STATUS (WINAPI* uuid_func)(UUID __RPC_FAR *Uuid);
 #ifdef __CYGWIN__
 #  include <mntent.h>
 #endif
-#if defined(HAVE_LIBZ)
-# include <zlib.h>
-#endif
 
 inline int isdirsep(char c) { return c == '/' || c == '\\'; }
 
@@ -911,19 +908,6 @@ void Fl_WinAPI_System_Driver::gettime(time_t *sec, int *usec) {
   *usec = t.millitm * 1000;
 }
 
-void* Fl_WinAPI_System_Driver::gzopen(const char *fname, const char *mode) {
-#if defined(HAVE_LIBZ)
-  unsigned wl = fl_utf8towc(fname, strlen(fname), NULL, 0) + 1;
-  wchar_t *wc = new wchar_t[wl];
-  fl_utf8towc(fname, strlen(fname), wc, wl);
-  gzFile gzf = gzopen_w(wc, mode);
-  delete[] wc;
-  return gzf;
-#else
-  return NULL;
-#endif
-}
-
 //
 // End of "$Id$".
 //
diff --git a/src/fl_images_core.cxx b/src/fl_images_core.cxx
index 0a048fa5d..5af696764 100644
--- a/src/fl_images_core.cxx
+++ b/src/fl_images_core.cxx
@@ -32,13 +32,10 @@
 #include <FL/Fl_PNG_Image.H>
 #include <FL/Fl_PNM_Image.H>
 #include <FL/Fl_SVG_Image.H>
-#include <FL/Fl_System_Driver.H>
 #include <stdio.h>
 #include <stdlib.h>
 #include "flstring.h"
-#if defined(HAVE_LIBZ)
-#include <zlib.h>
-#endif
+
 
 //
 // Define a simple global image registration function that registers
@@ -93,15 +90,6 @@ fl_check_images(const char *name,		// I - Filename
 #endif // HAVE_LIBJPEG
 
 #ifdef FLTK_USE_NANOSVG
-#  if defined(HAVE_LIBZ)
-  if (header[0] == 0x1f && header[1] == 0x8b) {
-    gzFile gzf = (gzFile)fl_gzopen(name, "r");
-    if (gzf) {
-      gzread(gzf, header, headerlen);
-      gzclose(gzf);
-    }
-  }
-#  endif // HAVE_LIBZ
   if ( (headerlen > 5 && memcmp(header, "<?xml", 5) == 0) ||
       memcmp(header, "<svg", 4) == 0)
     return new Fl_SVG_Image(name);
diff --git a/src/fl_utf8.cxx b/src/fl_utf8.cxx
index 59a16dbf9..b7d58eecd 100644
--- a/src/fl_utf8.cxx
+++ b/src/fl_utf8.cxx
@@ -335,15 +335,6 @@ FILE *fl_fopen(const char* f, const char *mode) {
   return Fl::system_driver()->fopen(f, mode);
 }
 
-/** Same as function gzopen() of zlib, but accepts a UTF-8 encoded filename.
- \param fname The UTF-8 encoded filename.
- \param mode as in the standard fopen() function
- \return  A pointer of type gzFile, or NULL if the file can't be opened.
- */
-void* fl_gzopen(const char* fname, const char *mode) {
-  return Fl::system_driver()->gzopen(fname, mode);
-}
-
 /** Cross-platform function to run a system command with a UTF-8 encoded string.
 
   This function is especially useful under the MSWindows platform where