The addition of AM_MAKEFLAGS to libgfortran Makefile to fix a cross-compiler
problem significantly increases the size of the process environment to the point
that the arg list plus the environment is greater than MAX_ARG on AIX.
AM_MAKEFLAGS appears to be completely redundant and unnecessary in any target
library, except for specific options that should be passed using flags_to_pass.
AM_MAKEFLAGS is present in all target library makefiles. It performs an
additional variable expansion and substitution that fixes a bad substitution of
CC_FOR_TARGET into CC when cross-compiling that does not occur when building
native. The cause of the different behavior has not been determined.
--
Summary: libgfortran AM_MAKEFLAGS arg list + environment too
large
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Keywords: build
Severity: critical
Priority: P1
Component: bootstrap
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dje at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: powerpc-ibm-aix5.2.0.0
GCC host triplet: powerpc-ibm-aix5.2.0.0
GCC target triplet: powerpc-ibm-aix5.2.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18895
