summaryrefslogtreecommitdiff
path: root/Build/source/m4/kpse-zlib-flags.m4
diff options
context:
space:
mode:
authorKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
committerKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
commitad547a6b5986815fda458221149728d9d9ab1d87 (patch)
tree16296910eb3eca724371474ea9aea3994dc69614 /Build/source/m4/kpse-zlib-flags.m4
parent947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (diff)
restore Build,TODO from r57911
git-svn-id: svn://tug.org/texlive/trunk@57915 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/m4/kpse-zlib-flags.m4')
-rw-r--r--Build/source/m4/kpse-zlib-flags.m441
1 files changed, 41 insertions, 0 deletions
diff --git a/Build/source/m4/kpse-zlib-flags.m4 b/Build/source/m4/kpse-zlib-flags.m4
new file mode 100644
index 00000000000..4fc64b1cd9d
--- /dev/null
+++ b/Build/source/m4/kpse-zlib-flags.m4
@@ -0,0 +1,41 @@
+# Public macros for the TeX Live (TL) tree.
+# Copyright (C) 2009-2013 Peter Breitenlohner <tex-live@tug.org>
+#
+# This file is free software; the copyright holder
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# KPSE_ZLIB_FLAGS
+# ---------------
+# Provide the configure options '--with-system-zlib' (if in the TL tree),
+# '--with-zlib-includes', and '--with-zlib-libdir'.
+#
+# Also test if <zlib.h> defines 'z_const' and define ZLIB_CONST or z_const.
+#
+# Set the make variables ZLIB_INCLUDES and ZLIB_LIBS to the CPPFLAGS and
+# LIBS required for the `-lz' library in libs/zlib/ of the TL tree.
+AC_DEFUN([KPSE_ZLIB_FLAGS], [dnl
+AC_REQUIRE([KPSE_SAVE_FLAGS])[]dnl
+_KPSE_LIB_FLAGS([zlib], [z], [],
+ [-IBLD/libs/zlib/include], [BLD/libs/zlib/libz.a], [],
+ [], [${top_builddir}/../../libs/zlib/include/zconf.h])[]dnl
+AC_CACHE_CHECK([if <zlib.h> defines 'z_const'],
+ [kpse_cv_have_decl_z_const],
+ [KPSE_ADD_FLAGS([zlib])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <zlib.h>]],
+ [[z_const char * foo();]])],
+ [kpse_cv_have_decl_z_const=yes],
+ [kpse_cv_have_decl_z_const=no])
+ KPSE_RESTORE_FLAGS])
+AS_CASE([$kpse_cv_have_decl_z_const],
+ [yes], [AC_DEFINE([ZLIB_CONST], [1], [Define to 1 if <zlib.h> declares 'z_const'.])],
+ [AC_DEFINE([z_const], [], [Define as empty if not declared in <zlib.h>.])])
+]) # KPSE_ZLIB_FLAGS
+
+# KPSE_ZLIB_OPTIONS([WITH-SYSTEM])
+# --------------------------------
+AC_DEFUN([KPSE_ZLIB_OPTIONS], [_KPSE_LIB_OPTIONS([zlib], [$1])])
+
+# KPSE_ZLIB_SYSTEM_FLAGS
+# ----------------------
+AC_DEFUN([KPSE_ZLIB_SYSTEM_FLAGS], [_KPSE_LIB_FLAGS_SYSTEM([zlib], [z])])