diff options
Diffstat (limited to 'm4/curl-compilers.m4')
| -rw-r--r-- | m4/curl-compilers.m4 | 295 |
1 files changed, 266 insertions, 29 deletions
diff --git a/m4/curl-compilers.m4 b/m4/curl-compilers.m4 index a132ec28b..1cff5be01 100644 --- a/m4/curl-compilers.m4 +++ b/m4/curl-compilers.m4 @@ -22,7 +22,7 @@ #*************************************************************************** # File version for 'aclocal' use. Keep it a single number. -# serial 1 +# serial 2 dnl CURL_CHECK_COMPILER @@ -34,11 +34,33 @@ AC_DEFUN([CURL_CHECK_COMPILER], [ compiler_id="unknown" compiler_num="0" # + flags_dbg_all="unknown" + flags_dbg_yes="unknown" + flags_dbg_off="unknown" + flags_opt_all="unknown" + flags_opt_yes="unknown" + flags_opt_off="unknown" + # CURL_CHECK_COMPILER_DEC CURL_CHECK_COMPILER_IBM CURL_CHECK_COMPILER_INTEL CURL_CHECK_COMPILER_GNU # + if test "$compiler_id" = "unknown"; then + cat <<_EOF 1>&2 +*** +*** Warning: This configure script does not have information about the +*** compiler you are using, relative to the flags required to enable or +*** disable generation of debug info, optimization options or warnings. +*** +*** Whatever settings are present in CFLAGS will be used for this run. +*** +*** If you wish to help the cURL project to better support your compiler +*** you can report this and the required info on the libcurl development +*** mailing list: http://cool.haxx.se/mailman/listinfo/curl-library/ +*** +_EOF + fi ]) @@ -54,6 +76,12 @@ AC_DEFUN([CURL_CHECK_COMPILER_DEC], [ test "$curl_cv_have_def___DECC_VER" = "yes"; then AC_MSG_RESULT([yes]) compiler_id="DECC" + flags_dbg_all="-g -g0 -g1 -g2 -g3" + flags_dbg_yes="-g2" + flags_dbg_off="-g0" + flags_opt_all="-O -O0 -O1 -O2 -O3 -O4" + flags_opt_yes="-O1" + flags_opt_off="-O0" else AC_MSG_RESULT([no]) fi @@ -77,6 +105,19 @@ AC_DEFUN([CURL_CHECK_COMPILER_GNU], [ gccvhi=`echo $gccver | cut -d . -f1` gccvlo=`echo $gccver | cut -d . -f2` compiler_num=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null` + flags_dbg_all="-g -g0 -g1 -g2 -g3" + flags_dbg_all="$flags_dbg_all -ggdb" + flags_dbg_all="$flags_dbg_all -gstabs" + flags_dbg_all="$flags_dbg_all -gstabs+" + flags_dbg_all="$flags_dbg_all -gcoff" + flags_dbg_all="$flags_dbg_all -gxcoff" + flags_dbg_all="$flags_dbg_all -gdwarf-2" + flags_dbg_all="$flags_dbg_all -gvms" + flags_dbg_yes="-g" + flags_dbg_off="-g0" + flags_opt_all="-O -O0 -O1 -O2 -O3 -Os" + flags_opt_yes="-O2" + flags_opt_off="-O0" else AC_MSG_RESULT([no]) fi @@ -93,6 +134,19 @@ AC_DEFUN([CURL_CHECK_COMPILER_IBM], [ if test "$curl_cv_have_def___IBMC__" = "yes"; then AC_MSG_RESULT([yes]) compiler_id="IBMC" + flags_dbg_all="-g -g0 -g1 -g2 -g3" + flags_dbg_yes="-g" + flags_dbg_off="" + flags_opt_all="-O -O0 -O1 -O2 -O3 -O4 -O5" + flags_opt_all="$flags_opt_all -qnooptimize" + flags_opt_all="$flags_opt_all -qoptimize=0" + flags_opt_all="$flags_opt_all -qoptimize=1" + flags_opt_all="$flags_opt_all -qoptimize=2" + flags_opt_all="$flags_opt_all -qoptimize=3" + flags_opt_all="$flags_opt_all -qoptimize=4" + flags_opt_all="$flags_opt_all -qoptimize=5" + flags_opt_yes="-O2" + flags_opt_off="-qnooptimize" else AC_MSG_RESULT([no]) fi @@ -112,8 +166,27 @@ AC_DEFUN([CURL_CHECK_COMPILER_INTEL], [ CURL_CHECK_DEF([__unix__], [], [silent]) if test "$curl_cv_have_def___unix__" = "yes"; then compiler_id="ICC_unix" + flags_dbg_all="-g -g0" + flags_dbg_yes="-g -fp" + flags_dbg_off="-g0" + flags_opt_all="-O -O0 -O1 -O2 -O3 -Os" + flags_opt_yes="-O2" + flags_opt_off="-O0" else compiler_id="ICC_windows" + flags_dbg_all="/ZI /Zi /zI /zi /ZD /Zd /zD /zd /Z7 /z7" + flags_dbg_all="$flags_dbg_all /debug" + flags_dbg_all="$flags_dbg_all /debug:none" + flags_dbg_all="$flags_dbg_all /debug:minimal" + flags_dbg_all="$flags_dbg_all /debug:partial" + flags_dbg_all="$flags_dbg_all /debug:full" + flags_dbg_all="$flags_dbg_all /debug:semantic_stepping" + flags_dbg_all="$flags_dbg_all /debug:extended" + flags_dbg_yes="/Zi /Oy-" + flags_dbg_off="" + flags_opt_all="/O /O0 /O1 /O2 /O3 /Os" + flags_opt_yes="/O2" + flags_opt_off="" fi compiler_num="$curl_cv_def___INTEL_COMPILER" else @@ -122,12 +195,13 @@ AC_DEFUN([CURL_CHECK_COMPILER_INTEL], [ ]) -dnl CURL_PROCESS_CC_BASIC_OPTS +dnl CURL_SET_COMPILER_BASIC_OPTS dnl ------------------------------------------------- -dnl Sets compiler options/flags which are independant -dnl of configure's debug or warnings options. +dnl Sets compiler specific options/flags which do not +dnl depend on configure's debug, optimize or warnings +dnl options. -AC_DEFUN([CURL_PROCESS_CC_BASIC_OPTS], [ +AC_DEFUN([CURL_SET_COMPILER_BASIC_OPTS], [ AC_REQUIRE([CURL_CHECK_COMPILER])dnl # if test "$compiler_id" = "DECC"; then @@ -180,44 +254,134 @@ AC_DEFUN([CURL_PROCESS_CC_BASIC_OPTS], [ ]) -dnl CURL_PROCESS_CC_DEBUG_OPTS +dnl CURL_SET_COMPILER_DEBUG_OPTS dnl ------------------------------------------------- -dnl Sets compiler options/flags which depend on -dnl configure's debug given option. +dnl Sets compiler specific options/flags which depend +dnl on configure's debug option. -AC_DEFUN([CURL_PROCESS_CC_DEBUG_OPTS], [ +AC_DEFUN([CURL_SET_COMPILER_DEBUG_OPTS], [ AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl AC_REQUIRE([CURL_CHECK_COMPILER])dnl # - if test "$want_debug" = "yes"; then - CFLAGS="$CFLAGS -g" + if test "$compiler_id" != "unknown"; then + # + ac_save_CFLAGS="$CFLAGS" + ac_save_CPPFLAGS="$CPPFLAGS" + # + honor_debug_option="yes" + CURL_VAR_STRIP([CFLAGS],[${flags_dbg_all}]) + CURL_VAR_STRIP([CPPFLAGS],[${flags_dbg_all}]) + if test "$want_debug" = "yes"; then + CFLAGS="$CFLAGS $flags_dbg_yes" + AC_MSG_CHECKING([if compiler accepts debug enabling flags $flags_dbg_yes]) + fi + if test "$want_debug" = "no"; then + CFLAGS="$CFLAGS $flags_dbg_off" + AC_MSG_CHECKING([if compiler accepts debug disabling flags $flags_dbg_off]) + fi + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ + int i = 1; + return i; + ]]) + ],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + honor_debug_option="no" + ]) + # + if test "$honor_debug_option" = "no"; then + CFLAGS="$ac_save_CFLAGS" + CPPFLAGS="$ac_save_CPPFLAGS" + fi + # fi +]) + + +dnl CURL_SET_COMPILER_OPTIMIZE_OPTS +dnl ------------------------------------------------- +dnl Sets compiler specific options/flags which depend +dnl on configure's optimize option. + +AC_DEFUN([CURL_SET_COMPILER_OPTIMIZE_OPTS], [ + AC_REQUIRE([CURL_CHECK_OPTION_OPTIMIZE])dnl + AC_REQUIRE([CURL_CHECK_COMPILER])dnl # - if test "$want_debug" = "no"; then - dnl strip off optimizer flags - NEWFLAGS="" - for flag in $CFLAGS; do - case "$flag" in - -O*) - dnl echo "cut off $flag" - ;; - *) - NEWFLAGS="$NEWFLAGS $flag" - ;; - esac - done - CFLAGS=$NEWFLAGS + if test "$compiler_id" != "unknown"; then + # + ac_save_CFLAGS="$CFLAGS" + ac_save_CPPFLAGS="$CPPFLAGS" + # + dnl If optimization request setting has not been explicitly specified, + dnl it has been derived from the debug setting and initially assumed. + dnl This initially assumed optimizer setting will finally be ignored + dnl if CFLAGS or CPPFLAGS already hold optimizer flags. This implies + dnl that an initially assumed optimizer setting might not be honored. + # + honor_optimize_option="yes" + if test "$want_optimize" = "assume_no" || + test "$want_optimize" = "assume_yes"; then + AC_MSG_CHECKING([if compiler optimizer assumed setting might be used]) + CURL_VAR_MATCH_IFELSE([CFLAGS],[${flags_opt_all}],[ + honor_optimize_option="no" + ]) + CURL_VAR_MATCH_IFELSE([CPPFLAGS],[${flags_opt_all}],[ + honor_optimize_option="no" + ]) + AC_MSG_RESULT([$honor_optimize_option]) + if test "$honor_optimize_option" = "yes"; then + if test "$want_optimize" = "assume_yes"; then + want_optimize="yes" + fi + if test "$want_optimize" = "assume_no"; then + want_optimize="no" + fi + fi + fi + # + if test "$honor_optimize_option" = "yes"; then + CURL_VAR_STRIP([CFLAGS],[${flags_opt_all}]) + CURL_VAR_STRIP([CPPFLAGS],[${flags_opt_all}]) + if test "$want_optimize" = "yes"; then + CFLAGS="$CFLAGS $flags_opt_yes" + AC_MSG_CHECKING([if compiler accepts optimizer enabling flags $flags_opt_yes]) + fi + if test "$want_optimize" = "no"; then + CFLAGS="$CFLAGS $flags_opt_off" + AC_MSG_CHECKING([if compiler accepts optimizer disabling flags $flags_opt_off]) + fi + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + ]],[[ + int i = 1; + return i; + ]]) + ],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + honor_optimize_option="no" + ]) + fi + # + if test "$honor_optimize_option" = "no"; then + CFLAGS="$ac_save_CFLAGS" + CPPFLAGS="$ac_save_CPPFLAGS" + fi + # fi - # ]) -dnl CURL_PROCESS_CC_WARNING_OPTS +dnl CURL_SET_COMPILER_WARNING_OPTS dnl ------------------------------------------------- dnl Sets compiler options/flags which depend on dnl configure's warnings given option. -AC_DEFUN([CURL_PROCESS_CC_WARNING_OPTS], [ +AC_DEFUN([CURL_SET_COMPILER_WARNING_OPTS], [ AC_REQUIRE([CURL_CHECK_OPTION_WARNINGS])dnl AC_REQUIRE([CURL_CHECK_COMPILER])dnl # @@ -242,7 +406,7 @@ AC_DEFUN([CURL_PROCESS_CC_WARNING_OPTS], [ if test "$compiler_id" = "GNUC"; then # # FIXME: Some of these warnings should be changed into errors - # and moved to CURL-PROCESS-CC-BASIC-OPTS + # and moved to CURL-SET-COMPILER-BASIC-OPTS # if test "$want_warnings" = "yes"; then dnl this is a set of options we believe *ALL* gcc versions support: @@ -301,6 +465,7 @@ dnl CURL_PROCESS_DEBUG_BUILD_OPTS dnl ------------------------------------------------- dnl Settings which depend on configure's debug given dnl option, and further configure the build process. +dnl Don't use this macro for compiler dependant stuff. AC_DEFUN([CURL_PROCESS_DEBUG_BUILD_OPTS], [ AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl @@ -313,4 +478,76 @@ AC_DEFUN([CURL_PROCESS_DEBUG_BUILD_OPTS], [ ]) +dnl CURL_CHECK_PROG_CC +dnl ------------------------------------------------- +dnl Check for compiler program, preventing CFLAGS and +dnl CPPFLAGS from being unexpectedly changed. + +AC_DEFUN([CURL_CHECK_PROG_CC], [ + ac_save_CFLAGS="$CFLAGS" + ac_save_CPPFLAGS="$CPPFLAGS" + AC_PROG_CC + CFLAGS="$ac_save_CFLAGS" + CPPFLAGS="$ac_save_CPPFLAGS" +]) + + +dnl CURL_VAR_MATCH (VARNAME, VALUE) +dnl ------------------------------------------------- +dnl Verifies if shell variable VARNAME contains VALUE. +dnl Contents of variable VARNAME and VALUE are handled +dnl as whitespace separated lists of words. If at least +dnl one word of VALUE is present in VARNAME the match +dnl is considered positive, otherwise false. + +AC_DEFUN([CURL_VAR_MATCH], [ + ac_var_match_word="no" + for word1 in "${[$1]}"; do + for word2 in "[$2]"; do + if test "$word1" = "$word2"; then + ac_var_match_word="yes" + fi + done + done +]) + +dnl CURL_VAR_MATCH_IFELSE (VARNAME, VALUE, +dnl [ACTION-IF-MATCH], [ACTION-IF-NOT-MATCH]) +dnl ------------------------------------------------- +dnl This performs a CURL_VAR_MATCH check and executes +dnl first branch if the match is positive, otherwise +dnl the second branch is executed. + +AC_DEFUN([CURL_VAR_MATCH_IFELSE], [ + CURL_VAR_MATCH([$1],[$2]) + if test "$ac_var_match_word" = "yes"; then + ifelse($3,,:,[$3]) + ifelse($4,,,[else + [$4]]) + fi +]) + + +dnl CURL_VAR_STRIP (VARNAME, VALUE) +dnl ------------------------------------------------- +dnl Contents of variable VARNAME and VALUE are handled +dnl as whitespace separated lists of words. Each word +dnl from VALUE is removed from VARNAME when present. + +AC_DEFUN([CURL_VAR_STRIP], [ + ac_var_stripped="" + for word1 in "${[$1]}"; do + ac_var_strip_word="no" + for word2 in "[$2]"; do + if test "$word1" = "$word2"; then + ac_var_strip_word="yes" + fi + done + if test "$ac_var_strip_word" = "no"; then + ac_var_stripped="$ac_var_stripped $word1" + fi + done + dnl squeeze whitespace out of result + [$1]=`eval echo $[$1]` +]) |