#2648: GMP instructions (dev version) say to add ABI=32 to CFLAGS; should be
separate variable
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Reporter: drjones | Owner: k...@…
Type: defect | Status: new
Priority: normal | Milestone: 6.7
Component: Book | Version: SVN
Severity: normal | Keywords: GMP
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Comment(by gespinasse):
My mystake, the added instruction is --build=i486-linux
The diff of configure with and without build show at the start
{{{
-cd /usr/src/gmp-5.0.1 && ./configure --prefix=/usr --disable-static
ABI=32 #--build=i486-linux
-checking build system type... athlon-pc-linux-gnu
-checking host system type... athlon-pc-linux-gnu
+cd /usr/src/gmp-5.0.1 && ./configure --prefix=/usr --disable-static
ABI=32 --build=i486-linux
+checking build system type... i486-pc-linux-gnu
+checking host system type... i486-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
@@ -34,12 +34,11 @@
checking for build system compiler math library... -lm
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
-checking if the assembler knows about MMX instructions... yes
using ABI="32"
CC="gcc -std=gnu99"
CFLAGS="-Os -march=i486 -mtune=pentium -pipe -fomit-frame-pointer
-D_FORTIFY_SOURCE=2 -fstack-protector-all -fPIE -Wl,-z,now"
CPPFLAGS=""
- MPN_PATH=" x86/k7/mmx x86/k7 x86 generic"
+ MPN_PATH=" x86/i486 x86 generic"
checking for function prototypes... yes
checking for ANSI C header files... yes
checking for sys/types.h... yes
@@ -325,40 +324,41 @@
config.status: creating config.h
config.status: linking mpn/generic/add.c to mpn/add.c
config.status: linking mpn/generic/add_1.c to mpn/add_1.c
-config.status: linking mpn/x86/k7/aors_n.asm to mpn/add_n.asm
+config.status: linking mpn/x86/aors_n.asm to mpn/add_n.asm
}}}
Our --build instruction is strange as there is no i486-pc-linux-gnu
compiler.
But looking in configure code, the reason why it is working is
{{{
case $host_cpu in
i386*) path="x86" ;;
i486*) path="x86/i486 x86" ;;
i586 | pentium) path="x86/pentium x86" ;;
pentiummmx) path="x86/pentium/mmx x86/pentium x86" ;;
i686 | pentiumpro) path="x86/p6 x86" ;;
pentium2) path="x86/p6/mmx x86/p6 x86" ;;
pentium3) path="x86/p6/p3mmx x86/p6/mmx x86/p6 x86";;
pentiumm | core2 | corei)
path="x86/p6/sse2 x86/p6/p3mmx x86/p6/mmx
x86/p6 x86";;
k6[23]) path="x86/k6/k62mmx x86/k6/mmx x86/k6 x86" ;;
k6) path="x86/k6/mmx x86/k6 x86" ;;
geode) path="x86/k6/k62mmx x86/k6/mmx x86/k6 x86" ;;
# we don't have any specific 32-bit code for athlon64/opteron, the
# athlon code should be reasonable
athlon | athlon64) path="x86/k7/mmx x86/k7 x86" ;;
i786 | pentium4) path="x86/pentium4/sse2 x86/pentium4/mmx
x86/pentium4 x86" ;;
# VIA/Centaur processors, sold as CyrixIII and C3.
viac32) path="x86/p6/p3mmx x86/p6/mmx x86/p6 x86";;
viac3*) path="x86/pentium/mmx x86/pentium x86";;
atom) path="x86/atom x86" ;;
*) path="x86" ;;
esac
}}}
--
Ticket URL: <http://wiki.linuxfromscratch.org/lfs/ticket/2648#comment:5>
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