On 06/07/2018 12:45 AM, mallapadi niranjan wrote:
Greetings,
i am newbie trying to learn autoconf, I would like to autoconf to have
build scripts created to compile assembly language programs written using
GNU Assembler:
This is probably more a question for the automake list, since...
Below are my configurations
configure:ac
AC_INIT([hello], [0.01]])
AC_CONFIG_SRCDIR([hello.s])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_AUX_DIR([build-aux])
AM_INIT_AUTOMAKE([-Wall -Werror])
AC_CONFIG_FILES([Makefile])
AM_PROG_AS
...AM_PROG_AS is an automake macro, and...
AC_OUTPUT
Makefile.am
bin_PROGRAMS = hello
hello_SOURCES = hello.s
AM_CCAS = /usr/bin/as
AM_CCASFLAGS = --gstabs+
...AM_CCAS is a variable for use by automake, not autoconf.
[ashok@mydevel foobar]$ make
make all-am
make[1]: Entering directory `/home/ashok/practice/ia32/myasm/autotools/foobar'
gcc -g -O2 -o hello hello.o
According to the automake manual, AM_CCAS sets $CCAS to a default of $CC
unless you define it to something else. However, I have no idea why
$AM_CCASFLAGS doesn't seem to be honored in this line; you'll have to
ask the automake developers for help in debugging it.
How do i override to use /usr/bin/as instead of gcc and pass -gstabs+
flag to /usr/bin/as.
The easiest way there, per documentation (although I have not tested),
is to run './configure CCAS=/usr/bin/as' to force configure to use your
choice of assembler in place of the default (since the automake
documentation said the default would be $CC which is typically gcc on a
GNU/Linux system).
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
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