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Compile in C99 mode

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* configure.ac: Require C99 flags. Remove -Wdeclaration-after-statement.
This commit is contained in:
Daniel Llorens 2015-02-11 14:05:08 +01:00
parent b9cbf3b6de
commit 839dec6325
1 changed files with 16 additions and 17 deletions
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33
configure.ac
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@ -65,7 +65,7 @@ AC_CANONICAL_HOST
AC_LIBTOOL_WIN32_DLL AC_LIBTOOL_WIN32_DLL
AC_PROG_INSTALL AC_PROG_INSTALL
AC_PROG_CC AC_PROG_CC_C99
gl_EARLY gl_EARLY
AC_PROG_CPP AC_PROG_CPP
AC_PROG_SED AC_PROG_SED
@ -175,19 +175,19 @@ dnl investigation of problems with "64" system and library calls on
dnl Darwin (MacOS X). The libguile code (_scm.h) assumes that if a dnl Darwin (MacOS X). The libguile code (_scm.h) assumes that if a
dnl system has stat64, it will have all the other 64 APIs too; but on dnl system has stat64, it will have all the other 64 APIs too; but on
dnl Darwin, stat64 is there but other APIs are missing. dnl Darwin, stat64 is there but other APIs are missing.
dnl dnl
dnl It also appears, from the Darwin docs, that most system call APIs dnl It also appears, from the Darwin docs, that most system call APIs
dnl there (i.e. the traditional ones _without_ "64" in their names) have dnl there (i.e. the traditional ones _without_ "64" in their names) have
dnl been 64-bit-capable for a long time now, so it isn't necessary to dnl been 64-bit-capable for a long time now, so it isn't necessary to
dnl use "64" versions anyway. For example, Darwin's off_t is 64-bit. dnl use "64" versions anyway. For example, Darwin's off_t is 64-bit.
dnl dnl
dnl A similar problem has been reported for HP-UX: dnl A similar problem has been reported for HP-UX:
dnl http://www.nabble.com/Building-guile-1.8.2-on-hpux-td13106681.html dnl http://www.nabble.com/Building-guile-1.8.2-on-hpux-td13106681.html
dnl dnl
dnl Therefore, and also because a Guile without LARGEFILE64 support is dnl Therefore, and also because a Guile without LARGEFILE64 support is
dnl better than no Guile at all, we provide this option to suppress dnl better than no Guile at all, we provide this option to suppress
dnl trying to use "64" calls. dnl trying to use "64" calls.
dnl dnl
dnl It may be that for some 64-bit function on Darwin/HP-UX we do need dnl It may be that for some 64-bit function on Darwin/HP-UX we do need
dnl to use a "64" call, and hence that by using --without-64-calls we're dnl to use a "64" call, and hence that by using --without-64-calls we're
dnl missing out on that. If so, someone can work on that in the future. dnl missing out on that. If so, someone can work on that in the future.
@ -850,7 +850,7 @@ volatile complex double z = - _Complex_I;
int int
main (void) main (void)
{ {
z = csqrt (z); z = csqrt (z);
if (creal (z) > 0.0) if (creal (z) > 0.0)
return 0; /* good */ return 0; /* good */
else else
@ -914,9 +914,9 @@ AC_CHECK_SIZEOF(size_t)
AC_CHECK_SIZEOF(ssize_t) AC_CHECK_SIZEOF(ssize_t)
ffi_size_type=uint$(($ac_cv_sizeof_size_t*8)) ffi_size_type=uint$(($ac_cv_sizeof_size_t*8))
ffi_ssize_type=sint$(($ac_cv_sizeof_ssize_t*8)) ffi_ssize_type=sint$(($ac_cv_sizeof_ssize_t*8))
AC_DEFINE_UNQUOTED([ffi_type_size_t], ffi_type_${ffi_size_type}, AC_DEFINE_UNQUOTED([ffi_type_size_t], ffi_type_${ffi_size_type},
[ffi type for size_t]) [ffi type for size_t])
AC_DEFINE_UNQUOTED([ffi_type_ssize_t], ffi_type_${ffi_ssize_type}, AC_DEFINE_UNQUOTED([ffi_type_ssize_t], ffi_type_${ffi_ssize_type},
[ffi type for ssize_t]) [ffi type for ssize_t])
dnl i18n tests dnl i18n tests
@ -1271,7 +1271,7 @@ LIBS="$save_LIBS"
AC_CHECK_SIZEOF(float) AC_CHECK_SIZEOF(float)
if test "$ac_cv_sizeof_float" -le "$ac_cv_sizeof_long"; then if test "$ac_cv_sizeof_float" -le "$ac_cv_sizeof_long"; then
AC_DEFINE([SCM_SINGLES], 1, AC_DEFINE([SCM_SINGLES], 1,
[Define this if floats are the same size as longs.]) [Define this if floats are the same size as longs.])
fi fi
@ -1402,7 +1402,7 @@ case "$with_threads" in
# On Solaris, sched_yield lives in -lrt. # On Solaris, sched_yield lives in -lrt.
AC_SEARCH_LIBS(sched_yield, rt) AC_SEARCH_LIBS(sched_yield, rt)
;; ;;
esac esac
@ -1478,7 +1478,7 @@ GUILE_THREAD_LOCAL_STORAGE
fi # with_threads=pthreads fi # with_threads=pthreads
## Cross building ## Cross building
if test "$cross_compiling" = "yes"; then if test "$cross_compiling" = "yes"; then
AC_MSG_CHECKING(cc for build) AC_MSG_CHECKING(cc for build)
## /usr/bin/cc still uses wrong assembler ## /usr/bin/cc still uses wrong assembler
@ -1486,8 +1486,8 @@ if test "$cross_compiling" = "yes"; then
CC_FOR_BUILD="${CC_FOR_BUILD-PATH=/usr/bin:$PATH cc}" CC_FOR_BUILD="${CC_FOR_BUILD-PATH=/usr/bin:$PATH cc}"
else else
CC_FOR_BUILD="${CC_FOR_BUILD-$CC}" CC_FOR_BUILD="${CC_FOR_BUILD-$CC}"
fi fi
## AC_MSG_CHECKING("if we are cross compiling") ## AC_MSG_CHECKING("if we are cross compiling")
## AC_MSG_RESULT($cross_compiling) ## AC_MSG_RESULT($cross_compiling)
if test "$cross_compiling" = "yes"; then if test "$cross_compiling" = "yes"; then
@ -1500,14 +1500,14 @@ CCLD_FOR_BUILD="$CC_FOR_BUILD"
AC_SUBST(cross_compiling) AC_SUBST(cross_compiling)
AC_ARG_VAR(CC_FOR_BUILD,[build system C compiler]) AC_ARG_VAR(CC_FOR_BUILD,[build system C compiler])
AC_SUBST(CCLD_FOR_BUILD) AC_SUBST(CCLD_FOR_BUILD)
## libtool erroneously calls CC_FOR_BUILD HOST_CC; ## libtool erroneously calls CC_FOR_BUILD HOST_CC;
## --HOST is the platform that PACKAGE is compiled for. ## --HOST is the platform that PACKAGE is compiled for.
HOST_CC="$CC_FOR_BUILD" HOST_CC="$CC_FOR_BUILD"
AC_SUBST(HOST_CC) AC_SUBST(HOST_CC)
GUILE_CHECK_GUILE_FOR_BUILD GUILE_CHECK_GUILE_FOR_BUILD
## If we're using GCC, add flags to reduce strictness of undefined ## If we're using GCC, add flags to reduce strictness of undefined
## behavior, and ask for aggressive warnings. ## behavior, and ask for aggressive warnings.
GCC_CFLAGS="" GCC_CFLAGS=""
@ -1524,8 +1524,7 @@ case "$GCC" in
## <http://lists.gnu.org/archive/html/guile-devel/2012-01/msg00487.html>. ## <http://lists.gnu.org/archive/html/guile-devel/2012-01/msg00487.html>.
POTENTIAL_GCC_CFLAGS="-Wall -Wmissing-prototypes \ POTENTIAL_GCC_CFLAGS="-Wall -Wmissing-prototypes \
-Wdeclaration-after-statement -Wpointer-arith \ -Wpointer-arith -Wswitch-enum -fno-strict-aliasing -fwrapv"
-Wswitch-enum -fno-strict-aliasing -fwrapv"
# Do this here so we don't screw up any of the tests above that might # Do this here so we don't screw up any of the tests above that might
# not be "warning free" # not be "warning free"
if test "${GUILE_ERROR_ON_WARNING}" = yes if test "${GUILE_ERROR_ON_WARNING}" = yes