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* [newlib-cygwin] winsup: disable fortify source
@ 2022-03-17  2:09 Michael Frysinger
  0 siblings, 0 replies; only message in thread
From: Michael Frysinger @ 2022-03-17  2:09 UTC (permalink / raw)
  To: cygwin-cvs

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=461a28a566aa7d752383a401d62396252c239cbd

commit 461a28a566aa7d752383a401d62396252c239cbd
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Mon Mar 14 23:17:44 2022 -0400

    winsup: disable fortify source
    
    When using a compiler that automatically enables -D_FORTIFY_SOURCE,
    building winsup fails with errors like below.  Since winsup is not
    setup to compile itself with _FORTIFY_SOURCE, disable it for now.
    
    make[4]: Entering directory '.../x86_64-pc-cygwin/winsup/cygwin'
      CC       libc/minires-os-if.o
    In file included from .../newlib/newlib/libc/include/ssp/strings.h:34,
                     from .../newlib/newlib/libc/include/strings.h:77,
                     from .../newlib/newlib/libc/include/string.h:24,
                     from ../../../../../winsup/cygwin/string.h:12,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/guiddef.h:154,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/winnt.h:635,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/minwindef.h:163,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/windef.h:9,
                     from /usr/x86_64-pc-cygwin/usr/include/windows.h:69,
                     from ../../../../../winsup/cygwin/winlean.h:56,
                     from ../../../../../winsup/cygwin/winsup.h:84,
                     from ../../../../../winsup/cygwin/libc/minires-os-if.c:13:
    .../newlib/winsup/cygwin/include/ssp/socket.h:9:1: error: conflicting types for 'recv';
      have 'ssize_t(int,  void *, size_t,  int)' {aka 'long int(int,  void *, long unsigned int,  int)'}
        9 | __ssp_redirect0(ssize_t, recv, \
          | ^~~~~~~~~~~~~~~
    In file included from /usr/x86_64-pc-cygwin/usr/include/w32api/ws2tcpip.h:17,
                     from ../../../../../winsup/cygwin/libc/minires-os-if.c:14:
    /usr/x86_64-pc-cygwin/usr/include/w32api/winsock2.h:1022:34: note: previous declaration of 'recv' with
      type 'int(SOCKET,  char *, int,  int)' {aka 'int(long long unsigned int,  char *, int,  int)'}
     1022 |   WINSOCK_API_LINKAGE int WSAAPI recv(SOCKET s,char *buf,int len,int flags);
          |                                  ^~~~
    In file included from .../newlib/newlib/libc/include/ssp/strings.h:34,
                     from .../newlib/newlib/libc/include/strings.h:77,
                     from .../newlib/newlib/libc/include/string.h:24,
                     from ../../../../../winsup/cygwin/string.h:12,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/guiddef.h:154,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/winnt.h:635,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/minwindef.h:163,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/windef.h:9,
                     from /usr/x86_64-pc-cygwin/usr/include/windows.h:69,
                     from ../../../../../winsup/cygwin/winlean.h:56,
                     from ../../../../../winsup/cygwin/winsup.h:84,
                     from ../../../../../winsup/cygwin/libc/minires-os-if.c:13:
    .../newlib/winsup/cygwin/include/ssp/socket.h:13:1: error: conflicting types for 'recvfrom';
      have 'ssize_t(int,  void *, size_t,  int,  struct sockaddr *, socklen_t *)' {aka 'long int(int,  void *, long unsigned int,  int,  struct sockaddr *, int *)'}
       13 | __ssp_redirect0(ssize_t, recvfrom, \
          | ^~~~~~~~~~~~~~~
    In file included from /usr/x86_64-pc-cygwin/usr/include/w32api/ws2tcpip.h:17,
                     from ../../../../../winsup/cygwin/libc/minires-os-if.c:14:
    /usr/x86_64-pc-cygwin/usr/include/w32api/winsock2.h:1023:34: note: previous declaration of 'recvfrom' with
      type 'int(SOCKET,  char *, int,  int,  struct sockaddr *, int *)' {aka 'int(long long unsigned int,  char *, int,  int,  struct sockaddr *, int *)'}
     1023 |   WINSOCK_API_LINKAGE int WSAAPI recvfrom(SOCKET s,char *buf,int len,int flags,struct sockaddr *from,int *fromlen);
          |                                  ^~~~~~~~
    make[4]: *** [Makefile:1930: libc/minires-os-if.o] Error 1
      CC       gmon.o
    ../../../../../winsup/cygwin/gmon.c:60: error: "bzero" redefined [-Werror]
       60 | #define bzero(ptr,size) memset (ptr, 0, size);
          |
    In file included from .../newlib/newlib/libc/include/strings.h:77,
                     from .../newlib/newlib/libc/include/string.h:24,
                     from ../../../../../winsup/cygwin/string.h:12,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/guiddef.h:154,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/winnt.h:635,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/minwindef.h:163,
                     from /usr/x86_64-pc-cygwin/usr/include/w32api/windef.h:9,
                     from /usr/x86_64-pc-cygwin/usr/include/windows.h:69,
                     from ../../../../../winsup/cygwin/winlean.h:56,
                     from ../../../../../winsup/cygwin/winsup.h:84,
                     from ../../../../../winsup/cygwin/gmon.h:69,
                     from ../../../../../winsup/cygwin/gmon.c:47:
    .../newlib/newlib/libc/include/ssp/strings.h:43: note: this is the location of the previous definition
       43 | #define bzero(dst, len) \
          |
    cc1: all warnings being treated as errors

Diff:
---
 winsup/acinclude.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/winsup/acinclude.m4 b/winsup/acinclude.m4
index 7c900d707..ffd15aaaa 100644
--- a/winsup/acinclude.m4
+++ b/winsup/acinclude.m4
@@ -16,7 +16,7 @@ if test -z "$newlib_headers"; then
 fi
 newlib_headers="$target_builddir/newlib/targ-include $newlib_headers"
 
-AM_CPPFLAGS="-I${winsup_srcdir}/cygwin -I${target_builddir}/winsup/cygwin"
+AM_CPPFLAGS="-U_FORTIFY_SOURCE -I${winsup_srcdir}/cygwin -I${target_builddir}/winsup/cygwin"
 AM_CPPFLAGS="${AM_CPPFLAGS} -isystem ${cygwin_headers}"
 for h in ${newlib_headers}; do
     AM_CPPFLAGS="${AM_CPPFLAGS} -isystem $h"


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