# Default CFLAGS and LDFLAGS
#####################################################################
-CC_CHECK_CFLAGS_APPEND([ \
- -pipe \
- -DANOTHER_BRICK_IN_THE \
- -Wall \
- -W \
- -Wextra \
- -Wno-inline \
- -Wvla \
- -Wundef \
- -Wformat=2 \
- -Wlogical-op \
- -Wsign-compare \
- -Wformat-security \
- -Wmissing-include-dirs \
- -Wformat-nonliteral \
- -Wold-style-definition \
- -Wpointer-arith \
- -Winit-self \
- -Wdeclaration-after-statement \
- -Wfloat-equal \
- -Wmissing-prototypes \
- -Wstrict-prototypes \
- -Wredundant-decls \
- -Wmissing-declarations \
- -Wmissing-noreturn \
- -Wshadow \
- -Wendif-labels \
- -Wstrict-aliasing=2 \
- -Wwrite-strings \
- -Wno-long-long \
- -Wno-overlength-strings \
- -Wno-unused-parameter \
- -Wno-missing-field-initializers \
- -Wno-unused-result \
- -Wnested-externs \
- -Wchar-subscripts \
- -Wtype-limits \
- -Wuninitialized \
- -fno-common \
- -fdiagnostics-show-option \
- -fvisibility=hidden \
- -ffunction-sections \
- -fdata-sections])
-
-CC_CHECK_LDFLAGS_APPEND([ \
- -Wl,--as-needed \
- -Wl,--gc-sections])
-
+CC_CHECK_FLAGS_APPEND(with_cflags, [CFLAGS], [\
+ -pipe \
+ -DANOTHER_BRICK_IN_THE \
+ -Wall \
+ -W \
+ -Wextra \
+ -Wno-inline \
+ -Wvla \
+ -Wundef \
+ -Wformat=2 \
+ -Wlogical-op \
+ -Wsign-compare \
+ -Wformat-security \
+ -Wmissing-include-dirs \
+ -Wformat-nonliteral \
+ -Wold-style-definition \
+ -Wpointer-arith \
+ -Winit-self \
+ -Wdeclaration-after-statement \
+ -Wfloat-equal \
+ -Wmissing-prototypes \
+ -Wstrict-prototypes \
+ -Wredundant-decls \
+ -Wmissing-declarations \
+ -Wmissing-noreturn \
+ -Wshadow \
+ -Wendif-labels \
+ -Wstrict-aliasing=2 \
+ -Wwrite-strings \
+ -Wno-long-long \
+ -Wno-overlength-strings \
+ -Wno-unused-parameter \
+ -Wno-missing-field-initializers \
+ -Wno-unused-result \
+ -Wnested-externs \
+ -Wchar-subscripts \
+ -Wtype-limits \
+ -Wuninitialized \
+ -fno-common \
+ -fdiagnostics-show-option \
+ -fvisibility=hidden \
+ -ffunction-sections \
+ -fdata-sections])
+AC_SUBST([WARNINGFLAGS], $with_cflags)
+
+
+CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [ \
+ -Wl,--as-needed \
+ -Wl,--gc-sections])
+AC_SUBST([GCLDFLAGS], $with_ldflags)
#####################################################################
# Generate files from *.in
bindir: ${bindir}
compiler: ${CC}
- cflags: ${CFLAGS}
- ldflags: ${LDFLAGS}
+ cflags: ${with_cflags} ${CFLAGS}
+ ldflags: ${with_ldflags} ${LDFLAGS}
tools: ${enable_tools}
logging: ${enable_logging}
dnl Macros to check the presence of generic (non-typed) symbols.
dnl Copyright (c) 2006-2008 Diego Pettenò <flameeyes@gmail.com>
dnl Copyright (c) 2006-2008 xine project
+dnl Copyright (c) 2012 Lucas De Marchi <lucas.de.marchi@gmail.com>
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl this special exception to the GPL to apply to your modified version as
dnl well.
-dnl Check if the flag is supported by compiler
-dnl CC_CHECK_CFLAGS_SILENT([FLAG], [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND])
-
-AC_DEFUN([CC_CHECK_CFLAGS_SILENT], [
- AC_CACHE_VAL(AS_TR_SH([cc_cv_cflags_$1]),
- [ac_save_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS $1"
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([int a;])],
- [eval "AS_TR_SH([cc_cv_cflags_$1])='yes'"],
- [eval "AS_TR_SH([cc_cv_cflags_$1])='no'"])
- CFLAGS="$ac_save_CFLAGS"
- ])
-
- AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_$1])[ = xyes],
- [$2], [$3])
+dnl Check if flag in a envvar is supported by compiler and append
+dnl "backup" variable
+dnl CC_CHECK_FLAG_APPEND([WHERE-TO-APPEND], [ENV-VAR], [FLAG])
+AC_DEFUN([CC_CHECK_FLAG_APPEND], [
+ AC_CACHE_CHECK([if $CC supports flag $3 in envvar $2],
+ AS_TR_SH([cc_cv_$2_$3]),
+ [eval "AS_TR_SH([cc_save_$2])='${$2}'"
+ eval "AS_TR_SH([$2])='$3'"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([int a = 0; int main(void) { return a; } ])],
+ [eval "AS_TR_SH([cc_cv_$2_$3])='yes'"],
+ [eval "AS_TR_SH([cc_cv_$2_$3])='no'"])
+ eval "AS_TR_SH([$2])='$cc_save_$2'"])
+
+ AS_IF([eval test x$]AS_TR_SH([cc_cv_$2_$3])[ = xyes],
+ [eval "$1='${$1} $3'"])
])
-dnl Check if the flag is supported by compiler (cacheable)
-dnl CC_CHECK_CFLAGS([FLAG], [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND])
-
-AC_DEFUN([CC_CHECK_CFLAGS], [
- AC_CACHE_CHECK([if $CC supports $1 flag],
- AS_TR_SH([cc_cv_cflags_$1]),
- CC_CHECK_CFLAGS_SILENT([$1]) dnl Don't execute actions here!
- )
-
- AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_$1])[ = xyes],
- [$2], [$3])
+dnl CC_CHECK_FLAGS_APPEND([WHERE-TO-APPEND], [ENV-VAR], [FLAG1 FLAG2])
+AC_DEFUN([CC_CHECK_FLAGS_APPEND], [
+ for flag in $3; do
+ CC_CHECK_FLAG_APPEND($1, $2, $flag)
+ done
])
-dnl CC_CHECK_CFLAG_APPEND(FLAG, [action-if-found], [action-if-not-found])
-dnl Check for CFLAG and appends them to CFLAGS if supported
-AC_DEFUN([CC_CHECK_CFLAG_APPEND], [
- AC_CACHE_CHECK([if $CC supports $1 flag],
- AS_TR_SH([cc_cv_cflags_$1]),
- CC_CHECK_CFLAGS_SILENT([$1]) dnl Don't execute actions here!
- )
-
- AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_$1])[ = xyes],
- [CFLAGS="$CFLAGS $1"; DEBUG_CFLAGS="$DEBUG_CFLAGS $1"; $2], [$3])
-])
-dnl CC_CHECK_CFLAGS_APPEND([FLAG1 FLAG2], [action-if-found], [action-if-not])
-AC_DEFUN([CC_CHECK_CFLAGS_APPEND], [
- for flag in $1; do
- CC_CHECK_CFLAG_APPEND($flag, [$2], [$3])
- done
-])
dnl Check if the flag is supported by linker
dnl CC_CHECK_LDFLAGS_SILENT([FLAG], [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND])
-
AC_DEFUN([CC_CHECK_LDFLAGS_SILENT], [
AC_CACHE_VAL(AS_TR_SH([cc_cv_ldflags_$1]),
[ac_save_LDFLAGS="$LDFLAGS"
[$2], [$3])
])
-dnl CC_CHECK_LDFLAG_APPEND(FLAG, [action-if-found], [action-if-not-found])
-dnl Check for LDFLAG and appends them to LDFLAGS if supported
-AC_DEFUN([CC_CHECK_LDFLAG_APPEND], [
- AC_CACHE_CHECK([if $CC supports $1 flag],
- AS_TR_SH([cc_cv_ldflags_$1]),
- CC_CHECK_LDFLAGS_SILENT([$1]) dnl Don't execute actions here!
- )
-
- AS_IF([eval test x$]AS_TR_SH([cc_cv_ldflags_$1])[ = xyes],
- [LDFLAGS="$LDFLAGS $1"; DEBUG_LDFLAGS="$DEBUG_LDFLAGS $1"; $2], [$3])
-])
-
-dnl CC_CHECK_LDFLAGS_APPEND([FLAG1 FLAG2], [action-if-found], [action-if-not])
-AC_DEFUN([CC_CHECK_LDFLAGS_APPEND], [
- for flag in $1; do
- CC_CHECK_LDFLAG_APPEND($flag, [$2], [$3])
- done
-])
-
dnl define the LDFLAGS_NOUNDEFINED variable with the correct value for
dnl the current linker to avoid undefined references in a shared object.
AC_DEFUN([CC_NOUNDEFINED], [