From e898b930dcd0694a49dc8cdcf373e0fc125c9fde Mon Sep 17 00:00:00 2001
From: Guus Sliepen <guus@tinc-vpn.org>
Date: Mon, 6 Oct 2003 16:05:30 +0000
Subject: [PATCH] Use CPPFLAGS, LDFLAGS and LIBS as appropiate.

---
 m4/lzo.m4     | 10 ++--------
 m4/openssl.m4 | 10 ++--------
 m4/zlib.m4    | 10 ++--------
 3 files changed, 6 insertions(+), 24 deletions(-)

diff --git a/m4/lzo.m4 b/m4/lzo.m4
index 147318fe..33d47d3a 100644
--- a/m4/lzo.m4
+++ b/m4/lzo.m4
@@ -2,27 +2,23 @@ dnl Check to find the lzo headers/libraries
 
 AC_DEFUN(tinc_LZO,
 [
-  tinc_ac_save_CPPFLAGS="$CPPFLAGS"
-
   AC_ARG_WITH(lzo,
     AC_HELP_STRING([--with-lzo=DIR], [lzo base directory, or:]),
     [lzo="$withval"
-     CFLAGS="$CFLAGS -I$withval/include"
      CPPFLAGS="$CPPFLAGS -I$withval/include"
-     LIBS="$LIBS -L$withval/lib"]
+     LDFLAGS="$LDFLAGS -L$withval/lib"]
   )
 
   AC_ARG_WITH(lzo-include,
     AC_HELP_STRING([--with-lzo-include=DIR], [lzo headers directory]),
     [lzo_include="$withval"
-     CFLAGS="$CFLAGS -I$withval"
      CPPFLAGS="$CPPFLAGS -I$withval"]
   )
 
   AC_ARG_WITH(lzo-lib,
     AC_HELP_STRING([--with-lzo-lib=DIR], [lzo library directory]),
     [lzo_lib="$withval"
-     LIBS="$LIBS -L$withval"]
+     LDFLAGS="$LDFLAGS -L$withval"]
   )
 
   AC_CHECK_HEADERS(lzo1x.h,
@@ -30,8 +26,6 @@ AC_DEFUN(tinc_LZO,
     [AC_MSG_ERROR("lzo header files not found."); break]
   )
 
-  CPPFLAGS="$tinc_ac_save_CPPFLAGS"
-
   AC_CHECK_LIB(lzo, lzo1x_1_compress,
     [LIBS="$LIBS -llzo"],
     [AC_MSG_ERROR("lzo libraries not found.")]
diff --git a/m4/openssl.m4 b/m4/openssl.m4
index 32e41de7..f4415cc2 100644
--- a/m4/openssl.m4
+++ b/m4/openssl.m4
@@ -2,27 +2,23 @@ dnl Check to find the OpenSSL headers/libraries
 
 AC_DEFUN(tinc_OPENSSL,
 [
-  tinc_ac_save_CPPFLAGS="$CPPFLAGS"
-
   AC_ARG_WITH(openssl,
     AC_HELP_STRING([--with-openssl=DIR], [OpenSSL base directory, or:]),
     [openssl="$withval"
-     CFLAGS="$CFLAGS -I$withval/include"
      CPPFLAGS="$CPPFLAGS -I$withval/include"
-     LIBS="$LIBS -L$withval/lib"]
+     LDFLAGS="$LDFLAGS -L$withval/lib"]
   )
 
   AC_ARG_WITH(openssl-include,
     AC_HELP_STRING([--with-openssl-include=DIR], [OpenSSL headers directory (without trailing /openssl)]),
     [openssl_include="$withval"
-     CFLAGS="$CFLAGS -I$withval"
      CPPFLAGS="$CPPFLAGS -I$withval"]
   )
 
   AC_ARG_WITH(openssl-lib,
     AC_HELP_STRING([--with-openssl-lib=DIR], [OpenSSL library directory]),
     [openssl_lib="$withval"
-     LIBS="$LIBS -L$withval"]
+     LDFLAGS="$LDFLAGS -L$withval"]
   )
 
   AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h,
@@ -30,8 +26,6 @@ AC_DEFUN(tinc_OPENSSL,
     [AC_MSG_ERROR([OpenSSL header files not found.]); break]
   )
 
-  CPPFLAGS="$tinc_ac_save_CPPFLAGS"
-
 case $host_os in
   *mingw*)
     AC_CHECK_LIB(crypto, SHA1_version,
diff --git a/m4/zlib.m4 b/m4/zlib.m4
index d6913263..dcf2c3af 100644
--- a/m4/zlib.m4
+++ b/m4/zlib.m4
@@ -2,27 +2,23 @@ dnl Check to find the zlib headers/libraries
 
 AC_DEFUN(tinc_ZLIB,
 [
-  tinc_ac_save_CPPFLAGS="$CPPFLAGS"
-
   AC_ARG_WITH(zlib,
     AC_HELP_STRING([--with-zlib=DIR], [zlib base directory, or:]),
     [zlib="$withval"
-     CFLAGS="$CFLAGS -I$withval/include"
      CPPFLAGS="$CPPFLAGS -I$withval/include"
-     LIBS="$LIBS -L$withval/lib"]
+     LDFLAGS="$LDFLAGS -L$withval/lib"]
   )
 
   AC_ARG_WITH(zlib-include,
     AC_HELP_STRING([--with-zlib-include=DIR], [zlib headers directory]),
     [zlib_include="$withval"
-     CFLAGS="$CFLAGS -I$withval"
      CPPFLAGS="$CPPFLAGS -I$withval"]
   )
 
   AC_ARG_WITH(zlib-lib,
     AC_HELP_STRING([--with-zlib-lib=DIR], [zlib library directory]),
     [zlib_lib="$withval"
-     LIBS="$LIBS -L$withval"]
+     LDFLAGS="$LDFLAGS -L$withval"]
   )
 
   AC_CHECK_HEADERS(zlib.h,
@@ -30,8 +26,6 @@ AC_DEFUN(tinc_ZLIB,
     [AC_MSG_ERROR("zlib header files not found."); break]
   )
 
-  CPPFLAGS="$tinc_ac_save_CPPFLAGS"
-
   AC_CHECK_LIB(z, compress2,
     [LIBS="$LIBS -lz"],
     [AC_MSG_ERROR("zlib libraries not found.")]
-- 
2.39.5