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dirmngr: Require a c99 compiler

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* configure.ac (USE_C99_CFLAGS): New ac_subst.  Set to -std=gnu99 for
gcc.
* dirmngr/Makefile.am (AM_CFLAGS): Add USE_C99_CFLAGS.
(t_http_CFLAGS): Ditto.
(t_ldap_parse_uri_CFLAGS): Ditto.
(t_dns_stuff_CFLAGS): Ditto.
--

C99 and the GCC option is required for use with dns.c which makes
heavy use of C99 features.  We should consider to switch GnuPG
entirely to C99 but enable gcc warnings to detect features which are
not supported by not-real-c99 compilers and which makes audits
harder (VLA etc.).

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2016-12-14 10:21:16 +01:00
parent d84f5a8823
commit 392966aed9
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
2 changed files with 10 additions and 4 deletions
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5
configure.ac
View File

@ -1577,8 +1577,13 @@ if test "$GCC" = yes; then
fi
CFLAGS="$mycflags $mycflags_save"
USE_C99_CFLAGS="-std=gnu99"
else
USE_C99_CFLAGS=
fi
AC_SUBST(USE_C99_CFLAGS)
#
# This is handy for debugging so the compiler doesn't rearrange

9
dirmngr/Makefile.am
View File

@ -35,7 +35,8 @@ AM_CPPFLAGS = -I$(top_srcdir)/common
include $(top_srcdir)/am/cmacros.am
AM_CFLAGS = $(LIBGCRYPT_CFLAGS) $(KSBA_CFLAGS) $(LIBASSUAN_CFLAGS) \
AM_CFLAGS = $(USE_C99_CFLAGS) \
$(LIBGCRYPT_CFLAGS) $(KSBA_CFLAGS) $(LIBASSUAN_CFLAGS) \
$(GPG_ERROR_CFLAGS) $(NPTH_CFLAGS) $(NTBTLS_CFLAGS) \
$(LIBGNUTLS_CFLAGS)
@ -132,7 +133,7 @@ endif
# http tests
t_http_SOURCES = $(t_common_src) t-http.c http.c dns-stuff.c
t_http_CFLAGS = -DWITHOUT_NPTH=1 \
t_http_CFLAGS = -DWITHOUT_NPTH=1 $(USE_C99_CFLAGS) \
$(LIBGCRYPT_CFLAGS) $(NTBTLS_CFLAGS) $(LIBGNUTLS_CFLAGS) \
$(GPG_ERROR_CFLAGS)
t_http_LDADD = $(t_common_ldadd) \
@ -142,11 +143,11 @@ t_ldap_parse_uri_SOURCES = \
t-ldap-parse-uri.c ldap-parse-uri.c ldap-parse-uri.h \
http.c dns-stuff.c \
$(ldap_url) $(t_common_src)
t_ldap_parse_uri_CFLAGS = -DWITHOUT_NPTH=1 \
t_ldap_parse_uri_CFLAGS = -DWITHOUT_NPTH=1 $(USE_C99_CFLAGS) \
$(LIBGCRYPT_CFLAGS) $(GPG_ERROR_CFLAGS)
t_ldap_parse_uri_LDADD = $(ldaplibs) $(t_common_ldadd) $(DNSLIBS)
t_dns_stuff_CFLAGS = -DWITHOUT_NPTH=1 \
t_dns_stuff_CFLAGS = -DWITHOUT_NPTH=1 $(USE_C99_CFLAGS) \
$(LIBGCRYPT_CFLAGS) $(GPG_ERROR_CFLAGS)
t_dns_stuff_SOURCES = $(t_common_src) t-dns-stuff.c dns-stuff.c
t_dns_stuff_LDADD = $(t_common_ldadd) $(DNSLIBS)