lib/libssh2
1
0
Fork 0
mirror of https://github.com/libssh2/libssh2.git synced 2025-12-24 19:37:49 +03:00
Code Activity

autotools: sync warning enabler code with curl

Browse Source 
Tiny changes and minor updates to bring this code closer
to curl's `m4/curl-compilers.m4`.

Closes #1223
This commit is contained in:
Viktor Szakats
2023-11-15 23:15:17 +00:00
parent e645fa95f3
commit 5996fefe2b
1 changed files with 37 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

63
acinclude.m4
View File

@@ -336,50 +336,61 @@ AC_DEFUN([CURL_CC_DEBUG_OPTS],
fi
else dnl $ICC = yes
dnl this is a set of options we believe *ALL* gcc versions support:
tmp_CFLAGS="-W -Wall -Wwrite-strings -pedantic -Wpointer-arith -Wnested-externs -Winline -Wmissing-prototypes"
tmp_CFLAGS="-pedantic"
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [all])
tmp_CFLAGS="-W"
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [pointer-arith write-strings])
#
dnl Only gcc 2.7 or later
if test "$compiler_num" -ge "207"; then
dnl gcc 2.7 or later
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [inline nested-externs])
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [missing-declarations])
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [missing-prototypes])
fi
if test "$compiler_num" -gt "295"; then
dnl only if the compiler is newer than 2.95 since we got lots of
dnl "`_POSIX_C_SOURCE' is not defined" in system headers with
dnl gcc 2.95.4 on FreeBSD 4.9!
tmp_CFLAGS="$tmp_CFLAGS -Wno-long-long -Wno-multichar"
#
dnl Only gcc 2.95 or later
if test "$compiler_num" -ge "295"; then
tmp_CFLAGS="$tmp_CFLAGS -Wno-long-long"
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [bad-function-cast])
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [unused shadow])
fi
#
dnl Only gcc 2.96 or later
if test "$compiler_num" -ge "296"; then
dnl gcc 2.96 or later
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [float-equal])
tmp_CFLAGS="$tmp_CFLAGS -Wno-multichar"
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [sign-compare])
dnl -Wundef used only if gcc is 2.96 or later since we get
dnl lots of "`_POSIX_C_SOURCE' is not defined" in system
dnl headers with gcc 2.95.4 on FreeBSD 4.9
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [undef])
fi
if test "$compiler_num" -gt "296"; then
dnl this option does not exist in 2.96
#
dnl Only gcc 2.97 or later
if test "$compiler_num" -ge "297"; then
tmp_CFLAGS="$tmp_CFLAGS -Wno-format-nonliteral"
fi
dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on
dnl on i686-Linux as it gives us heaps with false positives.
dnl Also, on gcc 4.0.X it is totally unbearable and complains all
dnl over making it unusable for generic purposes. Let's not use it.
#
dnl Only gcc 3.0 or later
if test "$compiler_num" -ge "300"; then
tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers"
dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on
dnl on i686-Linux as it gives us heaps with false positives.
dnl Also, on gcc 4.0.X it is totally unbearable and complains all
dnl over making it unusable for generic purposes. Let's not use it.
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [unused shadow])
fi
#
dnl Only gcc 3.3 or later
if test "$compiler_num" -ge "303"; then
dnl gcc 3.3 and later
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [endif-labels strict-prototypes])
fi
#
dnl Only gcc 3.4 or later
if test "$compiler_num" -ge "304"; then
# try these on gcc 3.4
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [declaration-after-statement])
CURL_ADD_COMPILER_WARNINGS([tmp_CFLAGS], [old-style-definition])
fi
#
dnl Only gcc 4.0 or later
if test "$compiler_num" -ge "400"; then
tmp_CFLAGS="$tmp_CFLAGS -Wstrict-aliasing=3"
@@ -387,7 +398,7 @@ AC_DEFUN([CURL_CC_DEBUG_OPTS],
#
dnl Only gcc 4.1 or later (possibly earlier)
if test "$compiler_num" -ge "401"; then
tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers"
tmp_CFLAGS="$tmp_CFLAGS"
fi
#
dnl Only gcc 4.2 or later