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[CONFIGURATION]

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* BUG: Correctly detect libc mathematical functions.


git-svn-id: svn://localhost/gambas/trunk@4365 867c0c6c-44f3-4631-809d-bfa615b0a4ec
This commit is contained in:
Benoît Minisini 2011-12-30 11:56:12 +00:00
parent eac2589a86
commit 0c048c6b5d
1 changed files with 34 additions and 3 deletions
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37
acinclude.m4
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@ -406,6 +406,30 @@ AC_DEFUN([GB_MATH],
])
## ---------------------------------------------------------------------------
## GB_CHECK_MATH_FUNC
## Check a specific mathematical function
##
## $1 = name of the function
## $2 = macro to define
## ---------------------------------------------------------------------------
AC_DEFUN([GB_CHECK_MATH_FUNC],
[AC_CACHE_CHECK(for $1,
gb_cv_math_$1,
[AC_TRY_COMPILE([
#define _ISOC9X_SOURCE 1
#define _ISOC99_SOURCE 1
#define __USE_ISOC99 1
#define __USE_ISOC9X 1
#include <math.h>],
[ int value = $1 (1.0) ; ], gb_cv_math_$1=yes, gb_cv_math_$1=no)])
if test $gb_cv_math_$1 = yes; then
AC_DEFINE(HAVE_$2, 1,
[Define if you have $1 function.])
fi
])
## ---------------------------------------------------------------------------
## GB_MATH_FUNC
## Detect which mathematical functions are available
@ -413,10 +437,17 @@ AC_DEFUN([GB_MATH],
AC_DEFUN([GB_MATH_FUNC],
[
dnl AC_CHECK_LIB(m, main, true)
ac_save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -lm"
AC_CHECK_FUNCS(log10l fabsl powl modfl exp10 exp2 log2)
LDFLAGS="$LDFLAGS -$MATH_LIB"
GB_CHECK_MATH_FUNC(log10l, LOG10L)
GB_CHECK_MATH_FUNC(fabsl, FABSL)
GB_CHECK_MATH_FUNC(powl, POWL)
GB_CHECK_MATH_FUNC(modfl, MODFL)
GB_CHECK_MATH_FUNC(exp10, EXP10)
GB_CHECK_MATH_FUNC(exp2, EXP2)
GB_CHECK_MATH_FUNC(log2, LOG2)
LDFLAGS=$ac_save_LDFLAGS
])