Add the ability to GCC_NEED_DECLARATION{S} for looking in arbitrary header...
Add the ability to GCC_NEED_DECLARATION{S} for looking in arbitrary
header files when searching for function declarations. Use this
functionality to check for getrlimit/setrlimit.
* aclocal.m4 (GCC_NEED_DECLARATION): Accept an optional second
argument, which is typically preprocessor code used to draw in
additional header files when looking for a function declaration.
(GCC_NEED_DECLARATIONS): Likewise.
* configure.in (GCC_NEED_DECLARATIONS): Add checks for getrlimit
and setrlimit, search for them in sys/resource.h.
* acconfig.h: Add stubs for NEED_DECLARATION_GETRLIMIT and
NEED_DECLARATION_SETRLIMIT.
* system.h: Prototype getrlimit/setrlimit if necessary.
From-SVN: r20831
This commit is contained in:
Kaveh R. Ghazi
Kaveh Ghazi
parent
70198e3dd0
commit
d2cabf1629
@ -1,3 +1,18 @@
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Tue Jun 30 14:03:34 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
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* aclocal.m4 (GCC_NEED_DECLARATION): Accept an optional second
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argument, which is typically preprocessor code used to draw in
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additional header files when looking for a function declaration.
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(GCC_NEED_DECLARATIONS): Likewise.
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* configure.in (GCC_NEED_DECLARATIONS): Add checks for getrlimit
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and setrlimit, search for them in sys/resource.h.
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* acconfig.h: Add stubs for NEED_DECLARATION_GETRLIMIT and
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NEED_DECLARATION_SETRLIMIT.
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* system.h: Prototype getrlimit/setrlimit if necessary.
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Tue Jun 30 10:54:48 1998 Mark Mitchell <mark@markmitchell.com>
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* rtl.texi: Don't say that RTX_INTEGRATED_P is unused.
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@ -65,6 +65,12 @@
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/* Whether getwd must be declared even if <unistd.h> is included. */
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#undef NEED_DECLARATION_GETWD
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/* Whether getrlimit must be declared even if <sys/resource.h> is included. */
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#undef NEED_DECLARATION_GETRLIMIT
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/* Whether setrlimit must be declared even if <sys/resource.h> is included. */
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#undef NEED_DECLARATION_SETRLIMIT
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/* Define if you want expensive run-time checks. */
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#undef ENABLE_CHECKING
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@TOP@
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7
gcc/aclocal.m4
vendored
7
gcc/aclocal.m4
vendored
@ -1,4 +1,5 @@
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dnl See whether we need a declaration for a function.
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dnl GCC_NEED_DECLARATION(FUNCTION [, EXTRA-HEADER-FILES])
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AC_DEFUN(GCC_NEED_DECLARATION,
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[AC_MSG_CHECKING([whether $1 must be declared])
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AC_CACHE_VAL(gcc_cv_decl_needed_$1,
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@ -22,7 +23,8 @@ AC_CACHE_VAL(gcc_cv_decl_needed_$1,
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#endif
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#ifndef HAVE_INDEX
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#define index strchr
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#endif],
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#endif
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$2],
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[char *(*pfn) = (char *(*)) $1],
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eval "gcc_cv_decl_needed_$1=no", eval "gcc_cv_decl_needed_$1=yes")])
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if eval "test \"`echo '$gcc_cv_decl_needed_'$1`\" = yes"; then
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@ -35,10 +37,11 @@ fi
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])dnl
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dnl Check multiple functions to see whether each needs a declaration.
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dnl GCC_NEED_DECLARATIONS(FUNCTION... [, EXTRA-HEADER-FILES])
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AC_DEFUN(GCC_NEED_DECLARATIONS,
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[for ac_func in $1
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do
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GCC_NEED_DECLARATION($ac_func)
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GCC_NEED_DECLARATION($ac_func, $2)
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done
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])
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@ -66,6 +66,15 @@
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/* Whether getwd must be declared even if <unistd.h> is included. */
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#undef NEED_DECLARATION_GETWD
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/* Whether getrlimit must be declared even if <sys/resource.h> is included. */
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#undef NEED_DECLARATION_GETRLIMIT
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/* Whether setrlimit must be declared even if <sys/resource.h> is included. */
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#undef NEED_DECLARATION_SETRLIMIT
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/* Define if you want expensive run-time checks. */
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#undef ENABLE_CHECKING
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/* Define if you don't have vprintf but do have _doprnt. */
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#undef HAVE_DOPRNT
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77
gcc/configure
vendored
77
gcc/configure
vendored
@ -1976,11 +1976,78 @@ else
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#ifndef HAVE_INDEX
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#define index strchr
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#endif
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int main() {
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char *(*pfn) = (char *(*)) $ac_func
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; return 0; }
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EOF
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if { (eval echo configure:1984: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
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if { (eval echo configure:1985: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
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rm -rf conftest*
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eval "gcc_cv_decl_needed_$ac_func=no"
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else
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echo "configure: failed program was:" >&5
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cat conftest.$ac_ext >&5
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rm -rf conftest*
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eval "gcc_cv_decl_needed_$ac_func=yes"
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fi
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rm -f conftest*
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fi
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if eval "test \"`echo '$gcc_cv_decl_needed_'$ac_func`\" = yes"; then
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echo "$ac_t""yes" 1>&6
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gcc_tr_decl=NEED_DECLARATION_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
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cat >> confdefs.h <<EOF
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#define $gcc_tr_decl 1
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EOF
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else
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echo "$ac_t""no" 1>&6
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fi
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done
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for ac_func in getrlimit setrlimit
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do
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echo $ac_n "checking whether $ac_func must be declared""... $ac_c" 1>&6
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echo "configure:2014: checking whether $ac_func must be declared" >&5
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if eval "test \"`echo '$''{'gcc_cv_decl_needed_$ac_func'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 2019 "configure"
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#include "confdefs.h"
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#include <stdio.h>
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifndef HAVE_RINDEX
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#define rindex strrchr
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#endif
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#ifndef HAVE_INDEX
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#define index strchr
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#endif
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#include <sys/types.h>
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif
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int main() {
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char *(*pfn) = (char *(*)) $ac_func
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; return 0; }
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EOF
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if { (eval echo configure:2051: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
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rm -rf conftest*
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eval "gcc_cv_decl_needed_$ac_func=no"
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else
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@ -2007,12 +2074,12 @@ done
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echo $ac_n "checking for sys_siglist declaration in signal.h or unistd.h""... $ac_c" 1>&6
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echo "configure:2011: checking for sys_siglist declaration in signal.h or unistd.h" >&5
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echo "configure:2078: checking for sys_siglist declaration in signal.h or unistd.h" >&5
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if eval "test \"`echo '$''{'ac_cv_decl_sys_siglist'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 2016 "configure"
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#line 2083 "configure"
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#include "confdefs.h"
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#include <sys/types.h>
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#include <signal.h>
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@ -2024,7 +2091,7 @@ int main() {
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char *msg = *(sys_siglist + 1);
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; return 0; }
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EOF
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if { (eval echo configure:2028: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
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if { (eval echo configure:2095: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
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rm -rf conftest*
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ac_cv_decl_sys_siglist=yes
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else
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@ -5147,7 +5214,7 @@ fi
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# Figure out what assembler alignment features are present.
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echo $ac_n "checking assembler alignment features""... $ac_c" 1>&6
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echo "configure:5151: checking assembler alignment features" >&5
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echo "configure:5218: checking assembler alignment features" >&5
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gcc_cv_as=
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gcc_cv_as_alignment_features=
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if [ -x as$host_exeext ]; then
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@ -199,6 +199,13 @@ GCC_FUNC_PRINTF_PTR
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GCC_NEED_DECLARATIONS(malloc realloc calloc free bcopy bzero bcmp \
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index rindex getenv atol sbrk abort atof strerror getcwd getwd)
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GCC_NEED_DECLARATIONS(getrlimit setrlimit, [
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#include <sys/types.h>
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif
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])
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AC_DECL_SYS_SIGLIST
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# File extensions
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16
gcc/system.h
16
gcc/system.h
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extern char *sys_errlist[];
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#endif /* HAVE_STRERROR */
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#ifdef HAVE_GETRLIMIT
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# ifdef NEED_DECLARATION_GETRLIMIT
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# ifndef getrlimit
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extern int getrlimit ();
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# endif
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# endif
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#endif
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#ifdef HAVE_SETRLIMIT
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# ifdef NEED_DECLARATION_SETRLIMIT
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# ifndef setrlimit
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extern int setrlimit ();
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# endif
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# endif
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#endif
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/* HAVE_VOLATILE only refers to the stage1 compiler. We also check
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__STDC__ and assume gcc sets it and has volatile in stage >=2. */
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#if !defined(HAVE_VOLATILE) && !defined(__STDC__) && !defined(volatile)
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