diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/curl-compilers.m4 | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/m4/curl-compilers.m4 b/m4/curl-compilers.m4 index 413293b10..adafaa61d 100644 --- a/m4/curl-compilers.m4 +++ b/m4/curl-compilers.m4 @@ -5,7 +5,7 @@ # | (__| |_| | _ <| |___ # \___|\___/|_| \_\_____| # -# Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al. +# Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al. # # This software is licensed as described in the file COPYING, which # you should have received as part of this distribution. The terms @@ -21,7 +21,7 @@ #*************************************************************************** # File version for 'aclocal' use. Keep it a single number. -# serial 56 +# serial 57 dnl CURL_CHECK_COMPILER @@ -40,6 +40,8 @@ AC_DEFUN([CURL_CHECK_COMPILER], [ flags_opt_yes="unknown" flags_opt_off="unknown" # + flags_prefer_cppflags="no" + # CURL_CHECK_COMPILER_DEC_C CURL_CHECK_COMPILER_HPUX_C CURL_CHECK_COMPILER_IBM_C @@ -210,6 +212,7 @@ AC_DEFUN([CURL_CHECK_COMPILER_IBM_C], [ flags_opt_all="$flags_opt_all -qoptimize=5" flags_opt_yes="-O2" flags_opt_off="-qnooptimize" + flags_prefer_cppflags="yes" else AC_MSG_RESULT([no]) fi @@ -586,15 +589,15 @@ AC_DEFUN([CURL_SET_COMPILER_BASIC_OPTS], [ IBM_C) # dnl Ensure that compiler optimizations are always thread-safe. - tmp_CFLAGS="$tmp_CFLAGS -qthreaded" + tmp_CPPFLAGS="$tmp_CPPFLAGS -qthreaded" dnl Disable type based strict aliasing optimizations, using worst dnl case aliasing assumptions when compiling. Type based aliasing dnl would restrict the lvalues that could be safely used to access dnl a data object. - tmp_CFLAGS="$tmp_CFLAGS -qnoansialias" + tmp_CPPFLAGS="$tmp_CPPFLAGS -qnoansialias" dnl Force compiler to stop after the compilation phase, without dnl generating an object code file when compilation has errors. - tmp_CFLAGS="$tmp_CFLAGS -qhalt=e" + tmp_CPPFLAGS="$tmp_CPPFLAGS -qhalt=e" ;; # INTEL_UNIX_C) @@ -720,8 +723,13 @@ AC_DEFUN([CURL_SET_COMPILER_DEBUG_OPTS], [ tmp_options="$flags_dbg_off" fi # - CPPFLAGS="$tmp_CPPFLAGS" - CFLAGS="$tmp_CFLAGS $tmp_options" + if test "$flags_prefer_cppflags" = "yes"; then + CPPFLAGS="$tmp_CPPFLAGS $tmp_options" + CFLAGS="$tmp_CFLAGS" + else + CPPFLAGS="$tmp_CPPFLAGS" + CFLAGS="$tmp_CFLAGS $tmp_options" + fi squeeze CPPFLAGS squeeze CFLAGS CURL_COMPILER_WORKS_IFELSE([ @@ -796,8 +804,13 @@ AC_DEFUN([CURL_SET_COMPILER_OPTIMIZE_OPTS], [ AC_MSG_CHECKING([if compiler accepts optimizer disabling options]) tmp_options="$flags_opt_off" fi - CPPFLAGS="$tmp_CPPFLAGS" - CFLAGS="$tmp_CFLAGS $tmp_options" + if test "$flags_prefer_cppflags" = "yes"; then + CPPFLAGS="$tmp_CPPFLAGS $tmp_options" + CFLAGS="$tmp_CFLAGS" + else + CPPFLAGS="$tmp_CPPFLAGS" + CFLAGS="$tmp_CFLAGS $tmp_options" + fi squeeze CPPFLAGS squeeze CFLAGS CURL_COMPILER_WORKS_IFELSE([ @@ -951,6 +964,7 @@ AC_DEFUN([CURL_SET_COMPILER_WARNING_OPTS], [ if test "$compiler_num" -ge "402"; then tmp_CFLAGS="$tmp_CFLAGS -Wcast-align" fi + # dnl Only gcc 4.3 or later if test "$compiler_num" -ge "403"; then tmp_CFLAGS="$tmp_CFLAGS -Wtype-limits -Wold-style-declaration" @@ -1198,11 +1212,11 @@ AC_DEFUN([CURL_CHECK_CURLDEBUG], [ fi # if test "$want_curldebug" = "yes"; then - CPPFLAGS="$CPPFLAGS -DCURLDEBUG" + CPPFLAGS="-DCURLDEBUG $CPPFLAGS" squeeze CPPFLAGS fi if test "$want_debug" = "yes"; then - CPPFLAGS="$CPPFLAGS -DDEBUGBUILD" + CPPFLAGS="-DDEBUGBUILD $CPPFLAGS" squeeze CPPFLAGS fi ]) |