fc95ad82e1
Noop in Buildroot as we override CFLAGS, but cleaner. Reported-by: Alexander Lukichev <alexander.lukichev@gmail.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
238 lines
5.8 KiB
Diff
238 lines
5.8 KiB
Diff
From 941c322e4378e0ef09f21bfd7b2a337b8f812629 Mon Sep 17 00:00:00 2001
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From: Romain Naour <romain.naour@openwide.fr>
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Date: Mon, 27 Jan 2014 22:42:53 +0100
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Subject: [PATCH 1/1] configure: fix cross-compilation issues
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- Use CFLAGS from command line
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- Remove "Check C compiler type (optimization options)"
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This test force optimization to -O3
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while it is already set in CFLAGS
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- Don't use host CPP
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- Remove "Check for Large File Support"
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LFS support is already set in CFLAGS
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Note: configure script still use host nm
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Signed-off-by: Romain Naour <romain.naour@openwide.fr>
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---
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unix/Makefile | 4 +-
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unix/configure | 161 +--------------------------------------------------------
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2 files changed, 3 insertions(+), 162 deletions(-)
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diff --git a/unix/Makefile b/unix/Makefile
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index abd0c44..8388c74 100644
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--- a/unix/Makefile
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+++ b/unix/Makefile
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@@ -58,7 +58,7 @@ IZ_OUR_BZIP2_DIR = bzip2
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# LFLAGS1 flags after output file spec, before obj file list
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# LFLAGS2 flags after obj file list (libraries, etc)
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CFLAGS_NOOPT = -I. -DUNIX $(LOCAL_ZIP)
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-CFLAGS = -O2 $(CFLAGS_NOOPT)
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+CFLAGS ?= -O2 $(CFLAGS_NOOPT)
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LFLAGS1 =
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LFLAGS2 = -s
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@@ -177,7 +177,7 @@ uninstall:
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flags: unix/configure
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- sh unix/configure "${CC}" "${CFLAGS_NOOPT}" "${IZ_BZIP2}"
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+ sh unix/configure "${CC}" "${CFLAGS}" "${IZ_BZIP2}"
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# These symbols, when #defined using -D have these effects on compilation:
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# ZMEM - includes C language versions of memset(), memcpy(),
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diff --git a/unix/configure b/unix/configure
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index 73ba803..57272db 100644
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--- a/unix/configure
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+++ b/unix/configure
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@@ -22,109 +22,9 @@ LFLAGS1=''
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LFLAGS2=''
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LN="ln -s"
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-CFLAGS_OPT=''
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-
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# bzip2
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IZ_BZIP2=${3-}
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-CFLAGS_BZ=''
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-
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-
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-echo 'Check C compiler type (optimization options)'
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-# Sun C?
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-cat > conftest.c << _EOF_
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-int main()
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-{
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-#ifndef __SUNPRO_C
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- bad code
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-#endif
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- return 0;
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-}
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-_EOF_
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-$CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
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-if test $? -eq 0; then
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- CFLAGS_OPT='-xO3'
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- echo " Sun C ($CFLAGS_OPT)"
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-else
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- # Tru64 DEC/Compaq/HP C?
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- cat > conftest.c << _EOF_
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-int main()
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-{
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-#ifndef __DECC
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- bad code
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-#endif
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- return 0;
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-}
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-_EOF_
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- $CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
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- if test $? -eq 0; then
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- CFLAGS_OPT='-O3'
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- echo " DEC C ($CFLAGS_OPT)"
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- else
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- # HP-UX HP C?
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- cat > conftest.c << _EOF_
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-int main()
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-{
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-#ifdef __GNUC__
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- bad code
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-#endif
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-#ifndef __hpux
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- bad code
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-#endif
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- return 0;
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-}
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-_EOF_
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- $CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
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- if test $? -eq 0; then
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- # HP-UX, not GCC. Lame bundled or real ANSI compiler?
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- CFLAGS_OPT_TRY="+O3 +Onolimit"
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- $CC $CFLAGS $CFLAGS_OPT_TRY -c conftest.c 2>&1 | \
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- grep '(Bundled)' > /dev/null
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- if test $? -ne 0; then
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- CFLAGS_OPT="$CFLAGS_OPT_TRY"
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- echo " HP-UX ANSI C ($CFLAGS_OPT)"
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- else
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- echo ' HP-UX Bundled C (no opt)'
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- fi
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- else
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- # GNU C?
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- cat > conftest.c << _EOF_
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-int main()
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-{
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-#ifndef __GNUC__
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- bad code
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-#endif
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- return 0;
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-}
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-_EOF_
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- $CC $CFLAGS -c conftest.c > /dev/null 2>/dev/null
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- if test $? -eq 0; then
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- CFLAGS_OPT='-O3'
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- echo " GNU C ($CFLAGS_OPT)"
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- # Special Mac OS X shared library "ld" option?
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- if test ` uname -s 2> /dev/null ` = 'Darwin'; then
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- lf='-Wl,-search_paths_first'
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- $CC $CFLAGS $lf conftest.c > /dev/null 2>/dev/null
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- if test $? -eq 0; then
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- LFLAGS2="${LFLAGS2} ${lf}"
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- fi
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- rm -f conftest
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- fi
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- else
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- CFLAGS_OPT='-O'
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- echo " Other-unknown C ($CFLAGS_OPT)"
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- fi
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- fi
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- fi
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-fi
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-
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-# optimization flags
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-if test -n "${CFLAGS_OPT}"; then
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- CFLAGS="${CFLAGS} ${CFLAGS_OPT}"
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- CFLAGS_BZ="${CFLAGS_BZ} ${CFLAGS_OPT}"
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-fi
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-
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-
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-# bzip2
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+CFLAGS_BZ="${CFLAGS}"
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echo "Check bzip2 support"
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CC_BZ="${CC}"
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@@ -220,13 +120,6 @@ fi
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echo Check for the C preprocessor
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# on SVR4, cc -E does not produce correct assembler files. Need /lib/cpp.
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CPP="${CC} -E"
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-# solaris as(1) needs -P, maybe others as well ?
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-[ -f /usr/ccs/lib/cpp ] && CPP="/usr/ccs/lib/cpp -P"
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-[ -f /usr/lib/cpp ] && CPP=/usr/lib/cpp
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-[ -f /lib/cpp ] && CPP=/lib/cpp
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-[ -f /usr/bin/cpp ] && CPP=/usr/bin/cpp
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-[ -f /xenix ] && CPP="${CC} -E"
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-[ -f /lynx.os ] && CPP="${CC} -E"
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echo "#include <stdio.h>" > conftest.c
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$CPP conftest.c >/dev/null 2>/dev/null || CPP="${CC} -E"
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@@ -398,58 +291,6 @@ else
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fi
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fi
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-
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-# Now we set the 64-bit file environment and check the size of off_t
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-# Added 11/4/2003 EG
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-# Revised 8/12/2004 EG
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-
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-echo Check for Large File Support
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-cat > conftest.c << _EOF_
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-# define _LARGEFILE_SOURCE /* some OSes need this for fseeko */
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-# define _LARGEFILE64_SOURCE
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-# define _FILE_OFFSET_BITS 64 /* select default interface as 64 bit */
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-# define _LARGE_FILES /* some OSes need this for 64-bit off_t */
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-#include <sys/types.h>
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-#include <sys/stat.h>
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-#include <unistd.h>
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-#include <stdio.h>
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-int main()
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-{
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- off_t offset;
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- struct stat s;
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- /* see if have 64-bit off_t */
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- if (sizeof(offset) < 8)
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- return 1;
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- printf(" off_t is %d bytes\n", sizeof(off_t));
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- /* see if have 64-bit stat */
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- if (sizeof(s.st_size) < 8) {
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- printf(" s.st_size is %d bytes\n", sizeof(s.st_size));
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- return 2;
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- }
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- return 3;
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-}
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-_EOF_
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-# compile it
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-$CC -o conftest conftest.c >/dev/null 2>/dev/null
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-if [ $? -ne 0 ]; then
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- echo -- no Large File Support
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-else
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-# run it
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- ./conftest
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- r=$?
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- if [ $r -eq 1 ]; then
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- echo -- no Large File Support - no 64-bit off_t
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- elif [ $r -eq 2 ]; then
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- echo -- no Large File Support - no 64-bit stat
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- elif [ $r -eq 3 ]; then
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- echo -- yes we have Large File Support!
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- CFLAGS="${CFLAGS} -DLARGE_FILE_SUPPORT"
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- else
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- echo -- no Large File Support - conftest returned $r
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- fi
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-fi
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-
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-
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# Check for wide char for Unicode support
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# Added 11/24/2005 EG
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--
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1.8.5.3
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