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- dnl Process this file with autoconf to produce a configure script for gzip
- dnl
- dnl Same as AC_RETSIGTYPE, but use a void default.
- dnl
- define(AC_RETSIGTYP,
- [AC_COMPILE_CHECK([return type of signal handlers],
- [#include <sys/types.h>
- #include <signal.h>
- #ifdef signal
- #undef signal
- #endif
- extern void (*signal ()) ();],
- [int i;],
- [],
- [AC_DEFINE(RETSIGTYPE, int)],
- )]
- )dnl
- dnl
- dnl End of local macros
- dnl
- AC_INIT(gzip.c)
- AC_PROG_CC
- AC_PROG_CPP
- dnl
- dnl Try to assemble match.S with and without leading underline.
- dnl cc -E produces incorrect asm files on SVR4, we must use /lib/cpp.
- dnl Also, "gcc -E match.s" ignores -E, so we must use match.S.
- echo checking for underline in external names
- test -z "$ASCPP" -a -f /lib/cpp && ASCPP=/lib/cpp
- test -z "$ASCPP" && ASCPP="$CC -E"
- cat > conftest.c <<EOF
- int foo() {return 0;}
- EOF
- eval "$CC -c conftest.c > /dev/null 2>&1"
- if nm conftest.o | grep _foo > /dev/null 2>&1 ; then
- :
- else
- ASCPP="${ASCPP} -DNO_UNDERLINE"
- fi
- rm -f _match.o conftest.c conftest.o
- if echo "$DEFS" | grep NO_ASM >/dev/null; then
- :
- else
- echo checking for assembler
- OBJA=""
- if eval "$ASCPP $srcdir/match.S > _match.s 2>/dev/null"; then
- if test ! -s _match.s || grep error < _match.s > /dev/null; then
- :
- elif eval "$CC -c _match.s >/dev/null 2>&1" && test -f _match.o; then
- DEFS="${DEFS} -DASMV"
- OBJA=match.o
- fi
- fi
- rm -f _match.s _match.o
- fi
- dnl
- AC_PROG_INSTALL
- AC_AIX
- AC_MINIX
- AC_ISC_POSIX
- AC_DYNIX_SEQ
- AC_STDC_HEADERS
- dnl if STDC_HEADERS can't be defined, look for special files:
- AC_HEADER_CHECK(string.h, ,AC_DEFINE(NO_STRING_H))
- AC_HEADER_CHECK(stdlib.h, ,AC_DEFINE(NO_STDLIB_H))
- AC_HEADER_CHECK(memory.h, ,AC_DEFINE(NO_MEMORY_H))
- AC_HEADER_CHECK(fcntl.h, ,AC_DEFINE(NO_FCNTL_H))
- AC_HEADER_CHECK(time.h, ,AC_DEFINE(NO_TIME_H))
- AC_HAVE_HEADERS(unistd.h)
- utime=0
- AC_HEADER_CHECK(utime.h, utime=1 ,AC_DEFINE(NO_UTIME_H))
- if test $utime -eq 0; then
- AC_HAVE_HEADERS(sys/utime.h)
- fi
- AC_DIR_HEADER
- AC_XENIX_DIR
- AC_RETSIGTYP
- AC_SIZE_T
- AC_HEADER_EGREP(off_t, sys/types.h, ,AC_DEFINE(NO_OFF_T))
- AC_HAVE_POUNDBANG([SEDCMD="1d"], [SEDCMD=""])
- AC_PREFIX(gzip)
- if test -z "$G" -a -n "$prefix" -a -f $prefix/bin/gznew; then
- G=g
- fi
- if test -z "$ZCAT"; then
- if test -n "$prefix" -a -f $prefix/bin/gzcat; then
- ZCAT=gzcat
- else
- ZCAT=${G}zcat
- fi
- fi
- AC_SUBST(ZCAT)dnl
- AC_SUBST(G)dnl
- AC_SUBST(CFLAGS)dnl
- AC_SUBST(ASCPP)dnl
- AC_SUBST(OBJA)dnl
- AC_SUBST(SEDCMD)dnl
- AC_OUTPUT(Makefile)
-