Fix the issues with GNU libiconv vs. libc iconv (which especially appear on

[fontconfig.git] / configure.in

diff --git a/configure.in b/configure.in
index 884bbe8fed13d1ead26d5f84e59d909fa7bb8bf2..acdc1f1dc9c6976c62b2d2552ecb57b0edf85b6a 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -135,7 +135,7 @@ dnl ==========================================================================
 # Checks for header files.
 AC_HEADER_DIRENT
 AC_HEADER_STDC
-AC_CHECK_HEADERS([fcntl.h stdlib.h string.h unistd.h iconv.h])
+AC_CHECK_HEADERS([fcntl.h stdlib.h string.h unistd.h])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
@@ -145,7 +145,40 @@ AC_TYPE_PID_T
 # Checks for library functions.
 AC_FUNC_VPRINTF
 AC_FUNC_MMAP
-AC_CHECK_FUNCS([geteuid getuid link memmove memset mkstemp strchr strrchr strtol getopt getopt_long iconv sysconf ftruncate chsize rand_r])
+AC_CHECK_FUNCS([geteuid getuid link memmove memset mkstemp strchr strrchr strtol getopt getopt_long sysconf ftruncate chsize rand_r])
+
+#
+# Checks for iconv
+#
+AC_MSG_CHECKING([for a usable iconv])
+ICONV_LIBS=""
+AC_TRY_LINK([#include <iconv.h>],
+           [iconv_open ("from", "to");],
+           [use_iconv=1],
+           [use_iconv=0])
+if test x$use_iconv = x1; then
+       AC_MSG_RESULT([libc])
+else
+       # try using libiconv
+       fontconfig_save_libs="$LIBS"
+       LIBS="$LIBS -liconv"
+
+       AC_TRY_LINK([#include <iconv.h>],
+                   [iconv_open ("from", "to");],
+                   [use_iconv=true],
+                   [use_iconv=false])
+       
+       if test x$use_iconv = x1; then
+               ICONV_LIBS="-liconv"
+               AC_MSG_RESULT([libiconv])
+       else
+               AC_MSG_RESULT([no])
+       fi
+
+       LIBS="$fontconfig_save_libs"
+fi
+AC_SUBST(ICONV_LIBS)
+AC_DEFINE_UNQUOTED(USE_ICONV,$use_iconv,[Use iconv.])
 
 #
 # Checks for FreeType