[SOLVED] 5.5 GCC-4.5.1 - Pass 1 - c99 mode compilation error

linuxquestions2010 · 11-14-2010, 05:47 AM

Can anyone please suggest any fix for the following compilation error.
I am at the 5.5 GCC-4.5.1 Pass 1 section of LFS book.
Host is openSUSE 11.3

Error:

Code:

gcc -DHAVE_CONFIG_H -I. -I../../gcc-4.5.1/mpc  -DNDEBUG    -Wall -Wextra -Wno-deprecated-declarations -Wmissing-prototypes -Wdeclaration-after-statement -Wshadow -Wpointer-arith -Wstrict-prototypes -Wcast-qual -Wwrite-strings -g -O2 -MT src_mpc-main.o -MD -MP -MF .deps/src_mpc-main.Tpo -c -o src_mpc-main.o `test -f 'src/main.c' || echo '../../gcc-4.5.1/mpc/'`src/main.c
../../gcc-4.5.1/mpc/src/main.c: In function 'find_command':
../../gcc-4.5.1/mpc/src/main.c:199:2: error: 'for' loop initial declarations are only allowed in C99 mode
../../gcc-4.5.1/mpc/src/main.c:199:2: note: use option -std=c99 or -std=gnu99 to compile your code
make[3]: *** [src_mpc-main.o] Error 1
make[3]: Leaving directory `/mnt/lfs/sources/gcc-build/mpc'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/mnt/lfs/sources/gcc-build/mpc'
make[1]: *** [all-mpc] Error 2
make[1]: Leaving directory `/mnt/lfs/sources/gcc-build'
make: *** [all] Error 2

Output of Prerequisites check:

Code:

bash version-check.sh             
bash, version 4.1.7(1)-release                             
/bin/sh -> /bin/bash                                       
Binutils: (GNU Binutils; openSUSE 11.3) 2.20.0.20100122-6  
bison (GNU Bison) 2.4.1
/usr/bin/yacc -> /usr/bin/yacc
bzip2,  Version 1.0.5, 10-Dec-2007.
Coreutils:  7.1
diff (GNU diffutils) 2.8.7-cvs
find (GNU findutils) 4.4.2
GNU Awk 3.1.6
/usr/bin/awk -> /bin/gawk
gcc (SUSE Linux) 4.5.0 20100604 [gcc-4_5-branch revision 160292]
GNU C Library stable release version 2.11.2 (20100531)
GNU grep 2.5.4
gzip 1.3.13
Linux version 2.6.34-12-default (geeko@buildhost) (gcc version 4.5.0 20100604 [gcc-4_5-branch revision 160292] (SUSE Linux) ) #1 SMP 2010-06-29 02:39:08 +0200
m4 (GNU M4) 1.4.13
GNU Make 3.81
GNU patch 2.6.1.81-5b68
Perl version='5.12.1';
GNU sed version 4.1.5
tar (GNU tar) 1.23
Texinfo: makeinfo (GNU texinfo) 4.13
Compilation OK

vda · 11-15-2010, 05:19 PM

Note line three of your first log ...

../../gcc-4.5.1/mpc/src/main.c:199:2: note: use option -std=c99 or -std=gnu99 to compile your code

The problem is indicated by line 2 of the same code ... a for loop contains a declaration which is not allowed unless you are using the newer compiler ... probably by now it is assumed that everyone has C99 specified ... LFS is a learning experience so you will need to dig about in compiler related stuff to figure out exactly where the -std=c99 should be hidden. Having done LFS several times, it is best to read through everything be fore you start.

Just a wild guess ...
5.5.1 builds a minimal compiler which will compile itself and the pieces it needs but not much else ... note the switch settings of stuff it is not to build ... make sure those are right, if they are, find the line in the code which has the offending for loop, then trace backwards to discover which switch is needed to turn off the compiling of that section. You might need to add that switch and notify your LFS friends - after testing the resulting compiler by finishing your project ...

linuxquestions2010 · 11-16-2010, 01:43 AM

Thanks for replying. I am really glad someone has replied.

I did try adding -std=c99 option while executing configure command, as well as, by manual editing the make file. But, its not getting fixed.

I am trying to build LFS since a very long time, but with no success.

druuna · 11-16-2010, 01:54 AM

Hi,

Assuming you are trying to build LFS 6.7 Stable: There's no need to change the commands given in the book, they work as stated. If you need to add to or change the commands in the book then something else is wrong. The 2 most common problems are:

1) Your host isn't fully up to specifications,
2) A mistake was made in the chapter in question or in the steps leading up to that chapter.

I do not have any experience using Suse as a host, but I guess that could be the base of your problem.

Check to see if Suse installs all that is needed (c99 for example) and not just the gcc/g++ part (you might need to install [additional?] gcc development package).

Hope this helps.

knudfl · 11-16-2010, 03:25 AM

c99 : I think, it's a Suse "special" to have it in a separate package,
hidden behind a 'none gcc' name :

# zypper in posix_cc

.... will provide /usr/bin/c99 ( And /usr/bin/c89 ).
....

linuxquestions2010 · 11-17-2010, 07:58 AM

Thank-you all for helping me out.

I installed all the development packages which i felt relevant using Yast2.
Then, i installed all the stuff for which i got a 'no' while ./configure.
And, miraculously, on hitting 'make', it compiled with no error.

Its funny that configure was showing no error and was creating makefile even though some crucial stuff was not present.

Thanks again.

))
I have now got the complete tool chain and now heading towards chapter 6.