On platforms where gcc (or clang) is not the native compiler, it can be
impossible to build texinfo with gcc.
For instance, on AIX 7.1.
After CC="gcc -maix64" PERL_EXT_CC="gcc -maix64"
the build fails with:
/bin/sh ../libtool --tag=CC --mode=compile gcc -maix64 -DHAVE_CONFIG_H -I.
-I../../../tta/C -I../../../tta/C/main -I../../../tta/C
-DDATADIR=\"/home/haible/prefix64/share\"
-DSYSCONFDIR=\"/home/haible/prefix64/etc\" -I../../../tta/gnulib/lib
-I../gnulib/lib -I/home/haible/prefix64/include -Wall -D_THREAD_SAFE
-D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE -qmaxmem=-1 -qnoansialias
-qlanglvl=extc99 -DUSE_NATIVE_DLOPEN -DNEED_PTHREAD_INIT -q32 -D_LARGE_FILES
-g -O2 -MT main/libperlcall_utils_la-xs_utils.lo -MD -MP -MF
main/.deps/libperlcall_utils_la-xs_utils.Tpo -c -o
main/libperlcall_utils_la-xs_utils.lo `test -f 'main/xs_utils.c' || echo
'../../../tta/C/'`main/xs_utils.c
libtool: compile: gcc -maix64 -DHAVE_CONFIG_H -I. -I../../../tta/C
-I../../../tta/C/main -I../../../tta/C
-DDATADIR=\"/home/haible/prefix64/share\"
-DSYSCONFDIR=\"/home/haible/prefix64/etc\" -I../../../tta/gnulib/lib
-I../gnulib/lib -I/home/haible/prefix64/include -Wall -D_THREAD_SAFE
-D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE -qmaxmem=-1 -qnoansialias
-qlanglvl=extc99 -DUSE_NATIVE_DLOPEN -DNEED_PTHREAD_INIT -q32 -D_LARGE_FILES -g
-O2 -MT main/libperlcall_utils_la-xs_utils.lo -MD -MP -MF
main/.deps/libperlcall_utils_la-xs_utils.Tpo -c ../../../tta/C/main/xs_utils.c
-fPIC -DPIC -o main/.libs/libperlcall_utils_la-xs_utils.o
gcc: error: unrecognized command line option '-qmaxmem=-1'
gcc: error: unrecognized command line option '-qnoansialias'
gcc: error: unrecognized command line option '-qlanglvl=extc99'
gcc: error: unrecognized command line option '-q32'
gmake[4]: *** [Makefile:3600: main/libperlcall_utils_la-xs_utils.lo] Error 1
Where do these options '-qmaxmem=-1' etc. come from?
$ perl -V
Summary of my perl5 (revision 5 version 28 subversion 1) configuration:
Platform:
osname=aix
osvers=7.1.0.0
archname=aix-thread-multi
uname='aix fvt-p7a2-lp2 1 7 0000668a7a00 '
config_args='-d -Dprefix=/usr/opt/perl5 -Dcc=xlc_r -Duseshrplib
-Dusethreads'
hint=previous
useposix=true
d_sigaction=define
useithreads=define
usemultiplicity=define
use64bitint=undef
use64bitall=undef
uselongdouble=undef
usemymalloc=n
default_inc_excludes_dot=define
bincompat5005=undef
Compiler:
cc='xlc_r'
ccflags ='-D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE -qmaxmem=-1
-qnoansialias -qlanglvl=extc99 -DUSE_NATIVE_DLOPEN -DNEED_PTHREAD_INIT -q32
-D_LARGE_FILES'
optimize='-O'
cppflags='-D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE -qmaxmem=-1
-qnoansialias -qlanglvl=extc99 -DUSE_NATIVE_DLOPEN -DNEED_PTHREAD_INIT'
ccversion=''
gccversion=''
gccosandvers=''
intsize=4
longsize=4
ptrsize=4
doublesize=8
byteorder=4321
doublekind=4
d_longlong=define
longlongsize=8
d_longdbl=define
longdblsize=8
longdblkind=0
ivtype='long'
ivsize=4
nvtype='double'
nvsize=8
Off_t='off_t'
lseeksize=8
alignbytes=8
prototype=define
Linker and Libraries:
ld='ld'
ldflags =' -brtl -bdynamic -b32'
libpth=/lib /usr/lib /usr/ccs/lib /usr/lib64
libs=-lpthread -lbind -lnsl -lgdbm -ldbm -ldl -lld -lm -lcrypt -lpthreads
-lc
perllibs=-lpthread -lbind -lnsl -ldl -lld -lm -lcrypt -lpthreads -lc
libc=/lib/libc.a
so=a
useshrplib=true
libperl=libperl.a
gnulibc_version=''
Dynamic Linking:
dlsrc=dl_aix.xs
dlext=so
d_dlsymun=undef
ccdlflags=' -bE:/usr/opt/perl5/lib/5.28.1/aix-thread-multi/CORE/perl.exp
-bE:/usr/opt/perl5/lib/5.28.1/aix-thread-multi/CORE/perl.exp'
cccdlflags=' '
lddlflags='-bhalt:4 -G -bI:$(PERL_INC)/perl.exp -bE:$(BASEEXT).exp
-bnoentry -lpthreads -lc -lm'
Characteristics of this binary (from libperl):
Compile-time options:
HAS_TIMES
MULTIPLICITY
PERLIO_LAYERS
PERL_COPY_ON_WRITE
PERL_DONT_CREATE_GVSV
PERL_IMPLICIT_CONTEXT
PERL_MALLOC_WRAP
PERL_OP_PARENT
PERL_PRESERVE_IVUV
USE_ITHREADS
USE_LARGE_FILES
USE_LOCALE
USE_LOCALE_COLLATE
USE_LOCALE_CTYPE
USE_LOCALE_NUMERIC
USE_LOCALE_TIME
USE_PERLIO
USE_PERL_ATOF
USE_REENTRANT_API
Built under aix
Compiled at Jul 14 2020 01:58:05
%ENV:
PERL_EXT_CC="gcc -maix64"
@INC:
/usr/opt/perl5/lib/site_perl/5.28.1/aix-thread-multi
/usr/opt/perl5/lib/site_perl/5.28.1
/usr/opt/perl5/lib/5.28.1/aix-thread-multi
/usr/opt/perl5/lib/5.28.1
/usr/opt/perl5/lib/site_perl
