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configure.in: Check for unistd.h as well. 

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	* configure.in: Check for unistd.h as well.
	* configure: Rebuild.
	* config.in: Rebuild.
	* getpagesize.c (GNU_OUR_PAGESIZE): Use sysconf only if _SC_PAGESIZE
	is defined in unistd.h. Reformat conditional block for easier reading.
	* config.table (shared): Default to no if ${enable_shared}
	is unset or empty; this logic is used by the toplevel
	configure scripts, too.

From-SVN: r19924
This commit is contained in:
Manfred Hollstein 1998-05-21 07:52:41 +00:00
parent 3fe97d74ad
commit b9256371fa
3 changed files with 32 additions and 24 deletions
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3
libiberty/config.in
View File

@ -186,3 +186,6 @@
/* Define if you have the <sys/param.h> header file. */
#undef HAVE_SYS_PARAM_H
/* Define if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H

2
libiberty/configure vendored
View File

@ -1019,7 +1019,7 @@ else
fi
echo "$ac_t""$CPP" 1>&6
for ac_hdr in sys/file.h sys/param.h stdlib.h string.h
for ac_hdr in sys/file.h sys/param.h stdlib.h string.h unistd.h
do
ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6

51
libiberty/getpagesize.c
View File

@ -35,31 +35,36 @@ BUGS
#include <sys/param.h>
#endif
#ifdef HAVE_SYSCONF
#undef GNU_OUR_PAGESIZE
#if defined (HAVE_SYSCONF) && defined (HAVE_UNISTD_H)
#include <unistd.h>
#ifdef _SC_PAGESIZE
#define GNU_OUR_PAGESIZE sysconf(_SC_PAGESIZE)
#else
#ifdef PAGESIZE
#define GNU_OUR_PAGESIZE PAGESIZE
#else /* no PAGESIZE */
#ifdef EXEC_PAGESIZE
#define GNU_OUR_PAGESIZE EXEC_PAGESIZE
#else /* no EXEC_PAGESIZE */
#ifdef NBPG
#define GNU_OUR_PAGESIZE (NBPG * CLSIZE)
#ifndef CLSIZE
#define CLSIZE 1
#endif /* CLSIZE */
#else /* no NBPG */
#ifdef NBPC
#define GNU_OUR_PAGESIZE NBPC
#else /* no NBPC */
#define GNU_OUR_PAGESIZE 4096 /* Just punt and use reasonable value */
#endif /* NBPC */
#endif /* NBPG */
#endif /* EXEC_PAGESIZE */
#endif /* PAGESIZE */
#endif /* HAVE_SYSCONF */
#endif
#endif
#ifndef GNU_OUR_PAGESIZE
# ifdef PAGESIZE
# define GNU_OUR_PAGESIZE PAGESIZE
# else /* no PAGESIZE */
# ifdef EXEC_PAGESIZE
# define GNU_OUR_PAGESIZE EXEC_PAGESIZE
# else /* no EXEC_PAGESIZE */
# ifdef NBPG
# define GNU_OUR_PAGESIZE (NBPG * CLSIZE)
# ifndef CLSIZE
# define CLSIZE 1
# endif /* CLSIZE */
# else /* no NBPG */
# ifdef NBPC
# define GNU_OUR_PAGESIZE NBPC
# else /* no NBPC */
# define GNU_OUR_PAGESIZE 4096 /* Just punt and use reasonable value */
# endif /* NBPC */
# endif /* NBPG */
# endif /* EXEC_PAGESIZE */
# endif /* PAGESIZE */
#endif /* GNU_OUR_PAGESIZE */
int
getpagesize ()