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-rwxr-xr-xBuild/source/texk/dvipdf-x/configure41
1 files changed, 41 insertions, 0 deletions
diff --git a/Build/source/texk/dvipdf-x/configure b/Build/source/texk/dvipdf-x/configure
index c65b9e1b330..6ac4efff518 100755
--- a/Build/source/texk/dvipdf-x/configure
+++ b/Build/source/texk/dvipdf-x/configure
@@ -15482,6 +15482,47 @@ $(ZLIB_DEPEND): ${top_builddir}/../../libs/zlib/include/zconf.h
${top_builddir}/../../libs/zlib/include/zconf.h:
cd ${top_builddir}/../../libs/zlib && $(MAKE) $(AM_MAKEFLAGS) rebuild'
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if <zlib.h> defines 'z_const'" >&5
+$as_echo_n "checking if <zlib.h> defines 'z_const'... " >&6; }
+if ${kpse_cv_have_decl_z_const+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ eval CPPFLAGS=\"$ZLIB_INCLUDES \$CPPFLAGS\"
+eval LIBS=\"$ZLIB_LIBS \$LIBS\"
+
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <zlib.h>
+int
+main ()
+{
+z_const char * foo();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ kpse_cv_have_decl_z_const=yes
+else
+ kpse_cv_have_decl_z_const=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ CPPFLAGS=$kpse_save_CPPFLAGS
+LIBS=$kpse_save_LIBS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $kpse_cv_have_decl_z_const" >&5
+$as_echo "$kpse_cv_have_decl_z_const" >&6; }
+case $kpse_cv_have_decl_z_const in #(
+ yes) :
+
+$as_echo "#define ZLIB_CONST 1" >>confdefs.h
+ ;; #(
+ *) :
+
+$as_echo "#define z_const /**/" >>confdefs.h
+ ;;
+esac
if test -n "$ac_tool_prefix"; then
# Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.