cf: Check cc support of -Werror=enum-conversion

This commit is contained in:
Nicolas Williams
2022-01-13 00:14:41 -06:00
parent fc4b3ce49b
commit 0c7b06f9ca
9 changed files with 68 additions and 9 deletions

53
cf/check-compile-flag.m4 Normal file
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@@ -0,0 +1,53 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
# Check whether the given FLAG works with the current language's compiler
# or gives an error. (Warnings, however, are ignored)
#
# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
# success/failure.
#
# If EXTRA-FLAGS is defined, it is added to the current language's default
# flags (e.g. CFLAGS) when the check is done. The check is thus made with
# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
# force the compiler to issue an error when a bad flag is given.
#
# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#
# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
# macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 6
AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
_AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
[AS_VAR_SET(CACHEVAR,[yes])],
[AS_VAR_SET(CACHEVAR,[no])])
_AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
[m4_default([$2], :)],
[m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_COMPILE_FLAGS

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@@ -87,8 +87,6 @@ dnl
dnl Helper bits for cross compiling
dnl
AM_CONDITIONAL(CROSS_COMPILE, test "${cross_compiling}" = yes)
AC_ARG_WITH(cross-tools,
@@ -117,6 +115,14 @@ else
fi
AX_CHECK_COMPILE_FLAG([-Werror=enum-conversion],
[WFLAGS_ENUM_CONV=-Werror=enum-conversion],
[WFLAGS_ENUM_CONV=], [-Werror])
AX_CHECK_COMPILE_FLAG([-Wno-unused-but-set-variable],
[WFLAGS_UNUSED_BUT_SET_VAR=-Wno-unused-but-set-variable],
[WFLAGS_UNUSED_BUT_SET_VAR=], [-Werror])
AC_SUBST([WFLAGS_ENUM_CONV])
AC_SUBST([ASN1_COMPILE])
AC_SUBST([ASN1_COMPILE_DEP])
AC_SUBST([SLC])

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@@ -2,7 +2,7 @@
include $(top_srcdir)/Makefile.am.common
WFLAGS += -Wno-error=enum-conversion
WFLAGS += $(WFLAGS_ENUM_CONV)
AM_CPPFLAGS += $(INCLUDE_libintl) $(INCLUDE_openssl_crypto) -I$(srcdir)/../lib/krb5

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@@ -2,7 +2,7 @@
include $(top_srcdir)/Makefile.am.common
WFLAGS += -Wno-error=enum-conversion
WFLAGS += $(WFLAGS_ENUM_CONV)
YFLAGS = -d -t

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@@ -2,7 +2,7 @@
include $(top_srcdir)/Makefile.am.common
WFLAGS += -Wno-error=enum-conversion
WFLAGS += $(WFLAGS_ENUM_CONV)
AUTOMAKE_OPTIONS = subdir-objects

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@@ -16,7 +16,7 @@ AM_CPPFLAGS += -I$(top_srcdir)/lib/hx509 \
WFLAGS += $(WFLAGS_LITE) -Wno-error=unused-function
# XXX: Make these not necessary:
WFLAGS += -Wno-error=unused-result -Wno-error=deprecated-declarations
WFLAGS += -Wno-unused-but-set-variable
WFLAGS += $(WFLAGS_UNUSED_BUT_SET_VAR)
lib_LTLIBRARIES = libhcrypto.la
check_LTLIBRARIES = libhctest.la

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@@ -2,7 +2,7 @@
include $(top_srcdir)/Makefile.am.common
WFLAGS += -Wno-error=enum-conversion
WFLAGS += $(WFLAGS_ENUM_CONV)
AM_CPPFLAGS += -I../asn1 -I$(srcdir)/../asn1
AM_CPPFLAGS += $(INCLUDE_openldap) -DHDB_DB_DIR=\"$(DIR_hdbdir)\"

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@@ -2,7 +2,7 @@
include $(top_srcdir)/Makefile.am.common
WFLAGS += -Wno-error=enum-conversion
WFLAGS += $(WFLAGS_ENUM_CONV)
AM_CPPFLAGS += $(AFS_EXTRA_DEFS) $(ROKEN_RENAME)

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@@ -2,7 +2,7 @@
include $(top_srcdir)/Makefile.am.common
WFLAGS += -Wno-error=enum-conversion
WFLAGS += $(WFLAGS_ENUM_CONV)
AM_CPPFLAGS += -I../com_err -I$(srcdir)/../com_err $(INCLUDE_sqlite3) $(INCLUDE_libintl) $(INCLUDE_openssl_crypto)