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Improvements to the build system (#25)

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* Renamed configure.in into configure.ac.

* Modernized configure.ac.

* Added '-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
This commit is contained in:
Giulio Paci
2019-06-04 14:04:56 +02:00
committed by Sangwhan "fish" Moon
parent e4f94fabd2
commit 2cee127280
2 changed files with 7 additions and 4 deletions
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108
configure.ac Normal file
View File

@@ -0,0 +1,108 @@
dnl $Id$
dnl
dnl
dnl Exported and configured variables:
dnl CFLAGS
dnl LDFLAGS
dnl INCLUDES
dnl ------------------------------------------------------------------
dnl Initialization for autoconf
dnl ------------------------------------------------------------------
AC_PREREQ([2.69])
AC_INIT(liblbfgs, 1.10)
AC_CONFIG_SRCDIR([lib/lbfgs.c])
AC_CONFIG_MACRO_DIR([m4])
dnl ------------------------------------------------------------------
dnl Initialization for automake
dnl ------------------------------------------------------------------
AM_INIT_AUTOMAKE
AC_CONFIG_HEADERS(config.h)
AM_MAINTAINER_MODE
dnl ------------------------------------------------------------------
dnl Checks for program
dnl ------------------------------------------------------------------
LT_INIT
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
dnl ------------------------------------------------------------------
dnl Initialization for variables
dnl ------------------------------------------------------------------
CFLAGS="${ac_save_CFLAGS} -Wall"
LDFLAGS="${ac_save_LDFLAGS}"
INCLUDES="-I\$(top_srcdir) -I\$(top_srcdir)/include"
dnl ------------------------------------------------------------------
dnl Checks for header files.
dnl ------------------------------------------------------------------
AC_HEADER_STDC
AC_CHECK_HEADERS(xmmintrin.h emmintrin.h)
dnl ------------------------------------------------------------------
dnl Checks for debugging mode
dnl ------------------------------------------------------------------
AC_ARG_ENABLE(
debug,
[AS_HELP_STRING(
[--enable-debug],
[build for debugging]
)],
[CFLAGS="-DDEBUG -O -g ${CFLAGS}"],
[CFLAGS="-O3 -ffast-math ${CFLAGS}"]
)
dnl ------------------------------------------------------------------
dnl Checks for profiling mode
dnl ------------------------------------------------------------------
AC_ARG_ENABLE(
profile,
[AS_HELP_STRING(
[--enable-profile],
[build for profiling]
)],
[CFLAGS="-DPROFILE -pg ${CFLAGS}"]
)
dnl ------------------------------------------------------------------
dnl Checks for SSE2 build
dnl ------------------------------------------------------------------
AC_ARG_ENABLE(
sse2,
[AS_HELP_STRING(
[--enable-sse2],
[enable SSE2 optimization routines]
)],
[CFLAGS="-msse2 -DUSE_SSE ${CFLAGS}"]
)
dnl ------------------------------------------------------------------
dnl Checks for library functions.
dnl ------------------------------------------------------------------
AC_CHECK_LIB(m, fabs)
dnl ------------------------------------------------------------------
dnl Export variables
dnl ------------------------------------------------------------------
AC_SUBST(CFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(INCLUDES)
dnl ------------------------------------------------------------------
dnl Output the configure results.
dnl ------------------------------------------------------------------
AC_CONFIG_FILES(Makefile lib/Makefile sample/Makefile)
AC_OUTPUT