[Buildroot] [git commit] package/file: fix build with gcc-4.8

[Buildroot] [git commit] package/file: fix build with gcc-4.8

[Yann E. MORIN]

commit: https://git.buildroot.net/buildroot/commit/?id=590d89fdad50f48c120b91ac008cc2ea4b625e15
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

file-5.41 uses AC_PROG_CC, and was generated with autoconf 2.69. That
oldish version of autoconf does not check the C standard when AC_PROG_CC
is called, and standard-specific macros must be called instead:
AC_PROG_CC_C89, AC_PROG_CC_C99, or AC_PROG_CC_STDC.

So we would need to patch configure.ac to call either of those options,
and then we'd have to autoreocnf.

However, that would autoreconf with our autoconf, version 2.71. In that
version, AC_PROG_CC always check what C standards are available and sets
the appropriate ac_cv_XXX variables, and the previous macros,
AC_PROG_CC_C89, AC_PROG_CC_C99, and AC_PROG_CC_STDC are deprecated.

So it turns out that we just need to autoreconf.

Fixes:
  - http://autobuild.buildroot.org/results/9e7868be00f2cd18205b2ce664be95f8b9e2b063
  - http://autobuild.buildroot.org/results/31cbc313fceb84c0cbb1969fca5ac44244871dbc

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 package/file/file.mk | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/package/file/file.mk b/package/file/file.mk
index b7e833e834..c06975460f 100644
--- a/package/file/file.mk
+++ b/package/file/file.mk
@@ -10,6 +10,8 @@ FILE_LICENSE = BSD-2-Clause, BSD-4-Clause (one file), BSD-3-Clause (one file)
 FILE_LICENSE_FILES = COPYING src/mygetopt.h src/vasprintf.c
 FILE_CPE_ID_VENDOR = file_project
 
+FILE_AUTORECONF = YES
+
 FILE_DEPENDENCIES = host-file
 FILE_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99'
 FILE_INSTALL_STAGING = YES
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