[arch-general] Current "CPPFLAGS=-D_FORTIFY_SOURCE=2" break some builds

[Leonid Isaev]

On Mon, 6 May 2013 16:01:30 -0400
Eric Bélanger <snowmaniscool at gmail.com> wrote:

> On Mon, May 6, 2013 at 3:45 PM, Leonid Isaev <lisaev at umail.iu.edu> wrote:
> 
> > Hi,
> >
> >         With gcc 4.8.0-4 I can no longer build core/links package from ABS,
> > with SSL support. The issue is _not_related to makepkg (as I originally
> > thought), even plain ./configure fails if I export
> > CPPFLAGS=-D_FORTIFY_SOURCE=2, regardless of the content of {C,CXX,LD}FLAGS.
> > Here is the error:
> > --------------------
> > $ ./configure --with-ssl
> > [ ... ]
> > checking for openssl... yes
> > checking OPENSSL_CFLAGS...
> > checking OPENSSL_LIBS... -lssl -lcrypto
> > checking for OpenSSL... no
> > checking for OpenSSL... no
> > configure: error: OpenSSL not found
> > $ cat config.log
> > [ ... ]
> > configure:8095: checking for openssl
> > configure:8102: checking OPENSSL_CFLAGS
> > configure:8107: checking OPENSSL_LIBS
> > configure:8139: checking for OpenSSL
> > configure:8150: gcc -o conftest -g -O2 -D_FORTIFY_SOURCE=2   conftest.c
> > -lssl
> > -lcrypto  -lm  1>&5
> > In file included from configure:8143:0:
> > confdefs.h:8:16: error: duplicate 'unsigned'
> >  #define size_t unsigned
> >                 ^
> > configure: failed program was:
> > #line 8143 "configure"
> > #include "confdefs.h"
> > #include <openssl/ssl.h>
> > int main() {
> > SSLeay_add_ssl_algorithms()
> > ; return 0; }
> > --------------------
> >
> > With gcc 4.7.2 all builds fine with Arch's default makepkg.conf, i.e. no
> > "duplicate unsigned error". Also, unsetting CPPFLAGS allows a successfull
> > build.
> >
> > Since core/links has been successfully rebuilt, what was the gcc version?
> > ANd
> > can anyone else confirm the above issue?
> >
> > TIA,
> > L.
> >
> >
> Aready fixed in links in testing. Just add a prepare function with:
>   sed -i "/ac_cpp=/s/\$CPPFLAGS/\$CPPFLAGS -O2/" configure
> 

I see, thank you. Alternatively one could simply do CPPFLAGS+=" -O2" in
PKGBUILD...

I'm still confused though: are we supposed to pass -On flags to cpp now (this
is even mentioned against in the configure script)? Or is it still a
gcc/glibc problem?

THanks again,
L.

> 
> 
> 
> > --
> > Leonid Isaev
> > GnuPG key: 0x164B5A6D
> > Fingerprint: C0DF 20D0 C075 C3F1 E1BE  775A A7AE F6CB 164B 5A6D
> >



-- 
Leonid Isaev
GnuPG key: 0x164B5A6D
Fingerprint: C0DF 20D0 C075 C3F1 E1BE  775A A7AE F6CB 164B 5A6D
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