This is the result of these commands on the computer where there are problems :
$ gcc -v -Wall -Wextra `xml2-config --cflags` -g -O2 `xml2-config --libs` -o xmlparsefile xmlparsefile-main.o
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-linux-gnu/4.6.1/lto-wrapper
Target: i686-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.1-9ubuntu3' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-objc-gc --enable-targets=all --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=i686-linux-gnu --host=i686-linux-gnu --target=i686-linux-gnu
Thread model: posix
gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
COMPILER_PATH=/usr/lib/gcc/i686-linux-gnu/4.6.1/:/usr/lib/gcc/i686-linux-gnu/4.6.1/:/usr/lib/gcc/i686-linux-gnu/:/usr/lib/gcc/i686-linux-gnu/4.6.1/:/usr/lib/gcc/i686-linux-gnu/
LIBRARY_PATH=/usr/lib/gcc/i686-linux-gnu/4.6.1/:/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/:/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib/:/lib/i386-linux-gnu/:/lib/../lib/:/usr/lib/i386-linux-gnu/:/usr/lib/../lib/:./:/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '-Wall' '-Wextra' '-I' '/auto/pierre/software/libxml2-2.7.8/include/libxml2' '-g' '-O2' '-L/auto/pierre/software/libxml2-2.7.8/lib' '-o' 'xmlparsefile' '-mtune=generic' '-march=i686'
/usr/lib/gcc/i686-linux-gnu/4.6.1/collect2 --build-id --no-add-needed --as-needed --eh-frame-hdr -m elf_i386 --hash-style=gnu -dynamic-linker /lib/ld-linux.so.2 -z relro -o xmlparsefile /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/crt1.o /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/crti.o /usr/lib/gcc/i686-linux-gnu/4.6.1/crtbegin.o -L/auto/pierre/software/libxml2-2.7.8/lib -L/usr/lib/gcc/i686-linux-gnu/4.6.1 -L/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu -L/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../lib -L/lib/i386-linux-gnu -L/lib/../lib -L/usr/lib/i386-linux-gnu -L/usr/lib/../lib -L. -L/usr/lib/gcc/i686-linux-gnu/4.6.1/../../.. -lxml2 -lm xmlparsefile-main.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/gcc/i686-linux-gnu/4.6.1/crtend.o /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/crtn.o
xmlparsefile-main.o: In function `parseDoc':
main.c:(.text+0xd): undefined reference to `xmlParseFile'
main.c:(.text+0x51): undefined reference to `xmlCleanupParser'
main.c:(.text+0x63): undefined reference to `xmlFreeDoc'
main.c:(.text+0x68): undefined reference to `xmlCleanupParser'
collect2: ld returned 1 exit status
$ gcc -Wl,-verbose -Wall -Wextra `xml2-config --cflags` -g -O2 `xml2-config --libs` -o xmlparsefile xmlparsefile-main.o
GNU ld (GNU Binutils for Ubuntu) 2.21.53.20110810
Supported emulations:
elf_i386
i386linux
elf32_x86_64
elf_x86_64
elf_l1om
elf_k1om
using internal linker script:
==================================================
/* Script for -z combreloc: combine and sort reloc sections */
OUTPUT_FORMAT("elf32-i386", "elf32-i386",
"elf32-i386")
OUTPUT_ARCH(i386)
ENTRY(_start)
SEARCH_DIR("/usr/i686-linux-gnu/lib32"); SEARCH_DIR("=/usr/local/lib32"); SEARCH_DIR("=/lib32"); SEARCH_DIR("=/usr/lib32"); SEARCH_DIR("=/usr/local/lib/i386-linux-gnu"); SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib/i386-linux-gnu"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib/i386-linux-gnu"); SEARCH_DIR("=/usr/lib");
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==================================================
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/crt1.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/crt1.o
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/crti.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/crti.o
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/crtbegin.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.6.1/crtbegin.o
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libxml2.so succeeded
-lxml2 (/auto/pierre/software/libxml2-2.7.8/lib/libxml2.so)
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libm.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libm.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libm.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libm.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so succeeded
-lm (/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so)
attempt to open xmlparsefile-main.o succeeded
xmlparsefile-main.o
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc.a succeeded
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc_s.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc_s.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc_s.so succeeded
-lgcc_s (/usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc_s.so)
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libc.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libc.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libc.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libc.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libc.so succeeded
opened script file /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libc.so
opened script file /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libc.so
attempt to open /lib/i386-linux-gnu/libc.so.6 succeeded
/lib/i386-linux-gnu/libc.so.6
attempt to open /usr/lib/i386-linux-gnu/libc_nonshared.a succeeded
(/usr/lib/i386-linux-gnu/libc_nonshared.a)elf-init.oS
attempt to open /lib/i386-linux-gnu/ld-linux.so.2 succeeded
/lib/i386-linux-gnu/ld-linux.so.2
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc.a succeeded
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc_s.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc_s.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc_s.so succeeded
-lgcc_s (/usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc_s.so)
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/crtend.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.6.1/crtend.o
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/crtn.o succeeded
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/crtn.o
ld-linux.so.2 needed by /lib/i386-linux-gnu/libc.so.6
found ld-linux.so.2 at /lib/i386-linux-gnu/ld-linux.so.2
xmlparsefile-main.o: In function `parseDoc':
main.c:(.text+0xd): undefined reference to `xmlParseFile'
main.c:(.text+0x51): undefined reference to `xmlCleanupParser'
main.c:(.text+0x63): undefined reference to `xmlFreeDoc'
main.c:(.text+0x68): undefined reference to `xmlCleanupParser'
collect2: ld returned 1 exit status
I see some failures :
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libm.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libm.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libm.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libm.a failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc_s.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc_s.a failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libc.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libc.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libc.so failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libc.a failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc.a failed
attempt to open /usr/lib/gcc/i686-linux-gnu/4.6.1/libgcc.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc_s.so failed
attempt to open /auto/pierre/software/libxml2-2.7.8/lib/libgcc_s.a failed
I don't know if these failures are fatal.
What can you see intresting to resolve my problem?
----- Mail original -----
De: "Kai Ruottu" <kai.ruottu@xxxxxxxxxxx>
À: gcc-help@xxxxxxxxxxx
Envoyé: Lundi 20 Février 2012 11:44:52
Objet: Re: The order of arguments differs
20.2.2012 10:31, spam.spam.spam.spam@xxxxxxx kirjoitti:
> First computer :
> gcc -Wall -Wextra `xml2-config --cflags` -g -O2 `xml2-config --libs` -o xmlparsefile xmlparsefile-main.o
> make[1]: Leaving directory `/.../1-xmlParseFile/src'
> make[1]: Entering directory `/.../1-xmlParseFile'
> make[1]: Nothing to be done for `all-am'.
> make[1]: Leaving directory `/.../1-xmlParseFile
>
> Second computer :
> gcc -Wall -Wextra `xml2-config --cflags` -g -O2 `xml2-config --libs` -o xmlparsefile xmlparsefile-main.o
> xmlparsefile-main.o: In function `parseDoc':
> main.c:(.text+0xd): undefined reference to `xmlParseFile'
> main.c:(.text+0x51): undefined reference to `xmlParseFile'
> main.c:(.text+0x63): undefined reference to `xmlParseFile'
> main.c:(.text+0x68): undefined reference to `xmlParseFile'
> collect2: ld returned 1 exist status
>
> Do you understand why I got this error on one computer, and not on the other?
Too complicated... You should simply look what the command :
gcc -Wall -Wextra `xml2-config --cflags` -g -O2 `xml2-config --libs` \
-o xmlparsefile xmlparsefile-main.o
causes during the link phase. The '-v' option for GCC and '-verbose'
for the linker ('-Wl,-verbose' for GCC) are good tools for this. Just
add them somehow to the process or try the command manually with the
additions :
gcc -v -Wall -Wextra `xml2-config --cflags` -g -O2 \
`xml2-config --libs` -o xmlparsefile xmlparsefile-main.o
gcc -Wl,-verbose -Wall -Wextra `xml2-config --cflags` -g -O2 \
`xml2-config --libs` -o xmlparsefile xmlparsefile-main.o
