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Adjust GCC warnings:

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Disable following warnings when cross-compiling with a gcc older
  than 3.0, to avoid warnings from third party system headers:

    -Wmissing-prototypes
    -Wunused
    -Wshadow
This commit is contained in:
Yang Tse
2008-10-13 17:06:06 +00:00
parent d6114165d3
commit 3ad956e73f
2 changed files with 28 additions and 4 deletions
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16
ares/m4/cares-compilers.m4
View File

@@ -750,9 +750,14 @@ AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [
fi fi
dnl Set of options we believe *ALL* gcc versions support: dnl Set of options we believe *ALL* gcc versions support:
tmp_CFLAGS="$tmp_CFLAGS -Wall -W -Winline -Wnested-externs" tmp_CFLAGS="$tmp_CFLAGS -Wall -W -Winline -Wnested-externs"
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes -Wpointer-arith" tmp_CFLAGS="$tmp_CFLAGS -Wpointer-arith -Wwrite-strings"
tmp_CFLAGS="$tmp_CFLAGS -Wwrite-strings"
dnl -Wcast-align is a bit too annoying on all gcc versions ;-) dnl -Wcast-align is a bit too annoying on all gcc versions ;-)
dnl Do not enable some warnings, when cross-compiling with a gcc
dnl older than 3.0, triggered on third party system headers.
if test "x$cross_compiling" != "xyes" ||
test "$compiler_num" -ge "300"; then
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes"
fi
if test "$compiler_num" -ge "207"; then if test "$compiler_num" -ge "207"; then
dnl gcc 2.7 or later dnl gcc 2.7 or later
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-declarations" tmp_CFLAGS="$tmp_CFLAGS -Wmissing-declarations"
@@ -790,6 +795,13 @@ AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [
if test "$compiler_num" -ge "300"; then if test "$compiler_num" -ge "300"; then
dnl gcc 3.0 and later dnl gcc 3.0 and later
tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers" tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers"
else
dnl Disable some warnings, when cross-compiling with a gcc
dnl older than 3.0, triggered on third party system headers.
if test "x$cross_compiling" = "xyes"; then
tmp_CFLAGS="$tmp_CFLAGS -Wno-missing-prototypes"
tmp_CFLAGS="$tmp_CFLAGS -Wno-unused -Wno-shadow"
fi
fi fi
;; ;;
# #

16
m4/curl-compilers.m4
View File

@@ -756,9 +756,14 @@ AC_DEFUN([CURL_SET_COMPILER_WARNING_OPTS], [
fi fi
dnl Set of options we believe *ALL* gcc versions support: dnl Set of options we believe *ALL* gcc versions support:
tmp_CFLAGS="$tmp_CFLAGS -Wall -W -Winline -Wnested-externs" tmp_CFLAGS="$tmp_CFLAGS -Wall -W -Winline -Wnested-externs"
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes -Wpointer-arith" tmp_CFLAGS="$tmp_CFLAGS -Wpointer-arith -Wwrite-strings"
tmp_CFLAGS="$tmp_CFLAGS -Wwrite-strings"
dnl -Wcast-align is a bit too annoying on all gcc versions ;-) dnl -Wcast-align is a bit too annoying on all gcc versions ;-)
dnl Do not enable some warnings, when cross-compiling with a gcc
dnl older than 3.0, triggered on third party system headers.
if test "x$cross_compiling" != "xyes" ||
test "$compiler_num" -ge "300"; then
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes"
fi
if test "$compiler_num" -ge "207"; then if test "$compiler_num" -ge "207"; then
dnl gcc 2.7 or later dnl gcc 2.7 or later
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-declarations" tmp_CFLAGS="$tmp_CFLAGS -Wmissing-declarations"
@@ -796,6 +801,13 @@ AC_DEFUN([CURL_SET_COMPILER_WARNING_OPTS], [
if test "$compiler_num" -ge "300"; then if test "$compiler_num" -ge "300"; then
dnl gcc 3.0 and later dnl gcc 3.0 and later
tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers" tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers"
else
dnl Disable some warnings, when cross-compiling with a gcc
dnl older than 3.0, triggered on third party system headers.
if test "x$cross_compiling" = "xyes"; then
tmp_CFLAGS="$tmp_CFLAGS -Wno-missing-prototypes"
tmp_CFLAGS="$tmp_CFLAGS -Wno-unused -Wno-shadow"
fi
fi fi
;; ;;
# #