C99 bfd configury

Certain library headers and functions are required by C99.  This
removes configure tests for them.  The patch also removes AC_ISC_POSIX
and AC_HEADER_DIRENT, which the autoconf manual states are obsolescent.
sys/time.h is no longer tangled up with time.h so it can be handled by
the gprof configure.

	* configure.ac: Don't check for long long or long double type.
	Don't check for alloca.h, limits.h, stddef.h, stdlib.h, string.h,
	strings.h, time.h, wchar.h, wctype.h or sys/time.h.  Don't check
	for strtoull, free, malloc, realloc, getenv, strstr, snprintf,
	vsnprintf, strlen or setitimer.  Sort AC_CHECK_DECLS.
	(AC_ISC_POSIX): Don't invoke.
	(AC_HEADER_TIME, AC_HEADER_DIRENT, ACX_HEADER_STRING): Likewise.
	* sysdep.h: Remove many HAVE_*_H checks and fallback declarations.
	Do test HAVE_SYS_TYPES_H.  Don't include sys/time.h.  Reorder
	header order as per automake AC_INCLUDES_DEFAULT.
	* bfd-in.h: Include inttypes.h unconditionally.
	* bfd.c (_bfd_doprnt, _bfd_doprnt_scan): Assume long long and
	long double are available.
	(bfd_scan_vma): Assume long long and strtoull are available.
	* elflink.c: Include limits.h unconditionally.
	* elfnn-riscv.c: Likewise.
	* wasm-module.c: Likewise.
	* hpux-core.c: Include dirent.h unconditionally.
	* trad-core.c: Likewise.
	* hosts/x86-64linux.h: Include stdlib.h unconditionally.
	* peXXigen.c: Remove HAVE_WCHAR_H and HAVE_WCTYPE_H checks.
	* elf32-m68hc1x.c: Don't include alloca-conf.h.
	* elf64-hppa.c: Likewise.
	* som.c: Likewise.
	* wasm-module.c: Likewise.
	* xsym.c: Likewise.
	* bfd-in2.h: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.

1 files changed, 7 insertions, 29 deletions

diff --git a/bfd/configure.ac b/bfd/configure.ac
index cb43ebc..5341c58 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -22,7 +22,6 @@ AC_INIT([bfd], BFD_VERSION)
 AC_CONFIG_SRCDIR([libbfd.c])
 
 AC_CANONICAL_TARGET
-AC_ISC_POSIX
 
 AM_INIT_AUTOMAKE
 
@@ -205,8 +204,7 @@ BFD_HOST_64_BIT=
 BFD_HOST_U_64_BIT=
 BFD_HOSTPTR_T="unsigned long"
 
-AC_TYPE_LONG_DOUBLE
-AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
+AC_CHECK_SIZEOF(long long)
 AC_CHECK_SIZEOF(void *)
 AC_CHECK_SIZEOF(long)
 AC_CHECK_SIZEOF(int)
@@ -243,37 +241,16 @@ AC_SUBST(BFD_HOSTPTR_T)
 
 BFD_CC_FOR_BUILD
 
-AC_CHECK_HEADERS(alloca.h fcntl.h limits.h stddef.h stdlib.h string.h \
-		 strings.h sys/file.h sys/resource.h sys/stat.h sys/time.h \
-		 time.h unistd.h wchar.h wctype.h)
-AC_HEADER_TIME
-AC_HEADER_DIRENT
+AC_CHECK_HEADERS(fcntl.h sys/file.h sys/resource.h sys/stat.h sys/types.h \
+		 unistd.h)
 
-ACX_HEADER_STRING
-AC_CHECK_FUNCS(fcntl getpagesize setitimer sysconf fdopen getuid getgid fileno fls)
-AC_CHECK_FUNCS(strtoull getrlimit)
+AC_CHECK_FUNCS(fcntl fdopen fileno fls getgid getpagesize getrlimit getuid \
+	       sysconf)
 
-AC_CHECK_DECLS(basename)
-AC_CHECK_DECLS(ftello)
-AC_CHECK_DECLS(ftello64)
-AC_CHECK_DECLS(fseeko)
-AC_CHECK_DECLS(fseeko64)
+AC_CHECK_DECLS([basename, ffs, stpcpy, asprintf, vasprintf])
 
 BFD_BINARY_FOPEN
 
-AC_CHECK_DECLS(ffs)
-AC_CHECK_DECLS(free)
-AC_CHECK_DECLS(getenv)
-AC_CHECK_DECLS(malloc)
-AC_CHECK_DECLS(realloc)
-AC_CHECK_DECLS(stpcpy)
-AC_CHECK_DECLS(strstr)
-AC_CHECK_DECLS(asprintf)
-AC_CHECK_DECLS(vasprintf)
-AC_CHECK_DECLS(snprintf)
-AC_CHECK_DECLS(vsnprintf)
-AC_CHECK_DECLS(strnlen)
-
 # Link in zlib if we can.  This allows us to read compressed debug sections.
 # This is used only by compress.c.
 AM_ZLIB
@@ -1089,6 +1066,7 @@ AC_SUBST(lt_cv_dlopen_libs)
 # Hopefully a reasonable assumption since fseeko et.al. should be
 # upward compatible.
 AC_CHECK_FUNCS(ftello ftello64 fseeko fseeko64 fopen64)
+AC_CHECK_DECLS([ftello, ftello64, fseeko, fseeko64, fopen64])
 if test x"$ac_cv_func_ftello" = xyes -a x"$ac_cv_func_fseeko" = xyes; then
     AC_CHECK_SIZEOF(off_t)
 fi