When I configure GCC, the configure script succeeds, but the compilation fails
because of a missing mpc.h. Of course, providing the mpc library fixes the
problem, but configure should report an error when mpc is not available (as it
does when gmp or mpfr is not available).
I hit this bug compiling the GCC 4.5.0 release with gmp 5.0.1 and mpfr 2.4.2 in
the GCC source directory (so that GCC rolls them into the build). I did not
specify any options to configure or make.
The build error occurs first in the file attribs.c:
In file included from ../../gcc-release/gcc/rtl.h:28,
from ../../gcc-release/gcc/attribs.c:30:
../../gcc-release/gcc/real.h:28:17: error: mpc.h: No such file or directory
In file included from ../../gcc-release/gcc/rtl.h:28,
from ../../gcc-release/gcc/attribs.c:30:
../../gcc-release/gcc/real.h:29: error: expected declaration specifiers or
... before mpc_ptr
../../gcc-release/gcc/real.h:29: error: expected declaration specifiers or
... before mpc_srcptr
../../gcc-release/gcc/real.h:29: error: expected declaration specifiers or
... before mpc_srcptr
../../gcc-release/gcc/real.h:29: error: expected declaration specifiers or
... before mpc_rnd_t
../../gcc-release/gcc/real.h:29: warning: function declaration isnt a
prototype
../../gcc-release/gcc/attribs.c: In function decl_attributes:
../../gcc-release/gcc/attribs.c:296: warning: unknown conversion type character
E in format
../../gcc-release/gcc/attribs.c:296: warning: too many arguments for format
../../gcc-release/gcc/attribs.c:304: warning: unknown conversion type character
E in format
../../gcc-release/gcc/attribs.c:304: warning: too many arguments for format
../../gcc-release/gcc/attribs.c:322: warning: unknown conversion type character
E in format
../../gcc-release/gcc/attribs.c:322: warning: too many arguments for format
../../gcc-release/gcc/attribs.c:374: warning: unknown conversion type character
E in format
../../gcc-release/gcc/attribs.c:374: warning: too many arguments for format
make[3]: *** [attribs.o] Error 1
--
Summary: Configure script does not report missing mpc.h
dependency.
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: other
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jseyster at cs dot sunysb dot edu
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44881
