* gcc trunk and -lmpc
@ 2010-04-22 10:47 Alexey Salmin
2010-04-24 11:14 ` Ian Lance Taylor
0 siblings, 1 reply; 2+ messages in thread
From: Alexey Salmin @ 2010-04-22 10:47 UTC (permalink / raw)
To: gcc-help
Hello! Today I tried to build latest gcc trunk (rev #158628) and got
the following errors:
libbackend.a(builtins.o): In function `fold_builtin_ccos':
/home/salmin/gcc-trunk/host-x86_64-unknown-linux-gnu/gcc/../.././gcc/builtins.c:7341:
undefined reference to `mpc_cosh'
/home/salmin/gcc-trunk/host-x86_64-unknown-linux-gnu/gcc/../.././gcc/builtins.c:7341:
undefined reference to `mpc_cos'
libbackend.a(builtins.o): In function `fold_builtin_cexp':
/home/salmin/gcc-trunk/host-x86_64-unknown-linux-gnu/gcc/../.././gcc/builtins.c:7434:
undefined reference to `mpc_exp'
....
which is surprising because I have libmpc installed (debian sid):
salmin@salmin:~/gcc-trunk$ dpkg -l libmpc* | grep ^ii | grep -v libmpcdec
ii libmpc-dev 0.8.1-1
multiple precision complex floating-point library development
package
ii libmpc2 0.8.1-1
multiple precision complex floating-point library
configuring with LDFLAGS=-lmpc solved the problem. Is it a bug in
Makefile or something or I'm doing it wrong?
Alexey
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: gcc trunk and -lmpc
2010-04-22 10:47 gcc trunk and -lmpc Alexey Salmin
@ 2010-04-24 11:14 ` Ian Lance Taylor
0 siblings, 0 replies; 2+ messages in thread
From: Ian Lance Taylor @ 2010-04-24 11:14 UTC (permalink / raw)
To: Alexey Salmin; +Cc: gcc-help
Alexey Salmin <alexey.salmin@gmail.com> writes:
> Hello! Today I tried to build latest gcc trunk (rev #158628) and got
> the following errors:
>
> libbackend.a(builtins.o): In function `fold_builtin_ccos':
> /home/salmin/gcc-trunk/host-x86_64-unknown-linux-gnu/gcc/../.././gcc/builtins.c:7341:
> undefined reference to `mpc_cosh'
> /home/salmin/gcc-trunk/host-x86_64-unknown-linux-gnu/gcc/../.././gcc/builtins.c:7341:
> undefined reference to `mpc_cos'
> libbackend.a(builtins.o): In function `fold_builtin_cexp':
> /home/salmin/gcc-trunk/host-x86_64-unknown-linux-gnu/gcc/../.././gcc/builtins.c:7434:
> undefined reference to `mpc_exp'
> ....
>
> which is surprising because I have libmpc installed (debian sid):
> salmin@salmin:~/gcc-trunk$ dpkg -l libmpc* | grep ^ii | grep -v libmpcdec
> ii libmpc-dev 0.8.1-1
> multiple precision complex floating-point library development
> package
> ii libmpc2 0.8.1-1
> multiple precision complex floating-point library
>
> configuring with LDFLAGS=-lmpc solved the problem. Is it a bug in
> Makefile or something or I'm doing it wrong?
This certainly sounds like a bug in the configure script or the
Makefile. It may be that since mpc is so new few people have tested
building gcc against an installed libmpc.
Ian
^ permalink raw reply [flat|nested] 2+ messages in thread
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2010-04-22 10:47 gcc trunk and -lmpc Alexey Salmin
2010-04-24 11:14 ` Ian Lance Taylor
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