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Adjust GCC --enable-warnings:

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Do not enable -pedantic when cross-compiling with a gcc older
  than 3.0, to avoid warnings from third party system headers.
This commit is contained in:
Yang Tse
2008-10-13 00:43:30 +00:00
parent 758939215d
commit ca70beec47
2 changed files with 26 additions and 2 deletions
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14
ares/m4/cares-compilers.m4
View File

@@ -742,8 +742,14 @@ AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [
GNUC) GNUC)
# #
if test "$want_warnings" = "yes"; then if test "$want_warnings" = "yes"; then
dnl Do not enable -pedantic when cross-compiling with a gcc older
dnl than 3.0, to avoid warnings from third party system headers.
if test "x$cross_compiling" != "xyes" ||
test "$compiler_num" -ge "300"; then
tmp_CFLAGS="$tmp_CFLAGS -pedantic"
fi
dnl Set of options we believe *ALL* gcc versions support: dnl Set of options we believe *ALL* gcc versions support:
tmp_CFLAGS="$tmp_CFLAGS -pedantic -Wall -W -Winline -Wnested-externs" tmp_CFLAGS="$tmp_CFLAGS -Wall -W -Winline -Wnested-externs"
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes -Wpointer-arith" tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes -Wpointer-arith"
tmp_CFLAGS="$tmp_CFLAGS -Wwrite-strings" tmp_CFLAGS="$tmp_CFLAGS -Wwrite-strings"
dnl -Wcast-align is a bit too annoying on all gcc versions ;-) dnl -Wcast-align is a bit too annoying on all gcc versions ;-)
@@ -779,6 +785,12 @@ AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [
tmp_CFLAGS="$tmp_CFLAGS -Wdeclaration-after-statement" tmp_CFLAGS="$tmp_CFLAGS -Wdeclaration-after-statement"
fi fi
fi fi
#
dnl Do not issue warnings for code in system include paths.
if test "$compiler_num" -ge "300"; then
dnl gcc 3.0 and later
tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers"
fi
;; ;;
# #
HPUXC) HPUXC)

14
m4/curl-compilers.m4
View File

@@ -748,8 +748,14 @@ AC_DEFUN([CURL_SET_COMPILER_WARNING_OPTS], [
GNUC) GNUC)
# #
if test "$want_warnings" = "yes"; then if test "$want_warnings" = "yes"; then
dnl Do not enable -pedantic when cross-compiling with a gcc older
dnl than 3.0, to avoid warnings from third party system headers.
if test "x$cross_compiling" != "xyes" ||
test "$compiler_num" -ge "300"; then
tmp_CFLAGS="$tmp_CFLAGS -pedantic"
fi
dnl Set of options we believe *ALL* gcc versions support: dnl Set of options we believe *ALL* gcc versions support:
tmp_CFLAGS="$tmp_CFLAGS -pedantic -Wall -W -Winline -Wnested-externs" tmp_CFLAGS="$tmp_CFLAGS -Wall -W -Winline -Wnested-externs"
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes -Wpointer-arith" tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes -Wpointer-arith"
tmp_CFLAGS="$tmp_CFLAGS -Wwrite-strings" tmp_CFLAGS="$tmp_CFLAGS -Wwrite-strings"
dnl -Wcast-align is a bit too annoying on all gcc versions ;-) dnl -Wcast-align is a bit too annoying on all gcc versions ;-)
@@ -785,6 +791,12 @@ AC_DEFUN([CURL_SET_COMPILER_WARNING_OPTS], [
tmp_CFLAGS="$tmp_CFLAGS -Wdeclaration-after-statement" tmp_CFLAGS="$tmp_CFLAGS -Wdeclaration-after-statement"
fi fi
fi fi
#
dnl Do not issue warnings for code in system include paths.
if test "$compiler_num" -ge "300"; then
dnl gcc 3.0 and later
tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers"
fi
;; ;;
# #
HPUXC) HPUXC)