Perform the same test for many <math.h> functions.

diff --git a/ChangeLog b/ChangeLog
index f94e401..335da1a 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,43 @@
 2010-01-31  Bruno Haible  <bruno@clisp.org>
 
+       Perform the same test for many <math.h> functions.
+       * m4/mathfunc.m4 (gl_COMMON_DOUBLE_MATHFUNC,
+       gl_COMMON_DOUBLE_MATHFUNC_TEST): New macros.
+       * m4/sqrt.m4 (gl_FUNC_SQRT): Invoke gl_COMMON_DOUBLE_MATHFUNC instead
+       of gl_MATHFUNC.
+       * modules/acos (configure.ac): Likewise.
+       * modules/asin (configure.ac): Likewise.
+       * modules/atan (configure.ac): Likewise.
+       * modules/atan2 (configure.ac): Likewise.
+       * modules/cbrt (configure.ac): Likewise.
+       * modules/copysign (configure.ac): Likewise.
+       * modules/cos (configure.ac): Likewise.
+       * modules/cosh (configure.ac): Likewise.
+       * modules/erf (configure.ac): Likewise.
+       * modules/erfc (configure.ac): Likewise.
+       * modules/exp (configure.ac): Likewise.
+       * modules/fmod (configure.ac): Likewise.
+       * modules/hypot (configure.ac): Likewise.
+       * modules/j0 (configure.ac): Likewise.
+       * modules/j1 (configure.ac): Likewise.
+       * modules/jn (configure.ac): Likewise.
+       * modules/lgamma (configure.ac): Likewise.
+       * modules/log (configure.ac): Likewise.
+       * modules/log10 (configure.ac): Likewise.
+       * modules/log1p (configure.ac): Likewise.
+       * modules/pow (configure.ac): Likewise.
+       * modules/remainder (configure.ac): Likewise.
+       * modules/sin (configure.ac): Likewise.
+       * modules/sinh (configure.ac): Likewise.
+       * modules/tan (configure.ac): Likewise.
+       * modules/tanh (configure.ac): Likewise.
+       * modules/y0 (configure.ac): Likewise.
+       * modules/y1 (configure.ac): Likewise.
+       * modules/yn (configure.ac): Likewise.
+       Suggested by Paolo Bonzini.
+
+2010-01-31  Bruno Haible  <bruno@clisp.org>
+
        * m4/getline.m4 (gl_FUNC_GETLINE): Add comment about REPLACE_GETLINE.
 
 2010-01-31  Bruno Haible  <bruno@clisp.org>

diff --git a/m4/mathfunc.m4 b/m4/mathfunc.m4
index 5e79d45..d09aaca 100644 (file)
--- a/m4/mathfunc.m4
+++ b/m4/mathfunc.m4
@@ -1,4 +1,4 @@
-# mathfunc.m4 serial 2
+# mathfunc.m4 serial 3
 dnl Copyright (C) 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -58,3 +58,58 @@ AC_DEFUN([gl_MATHFUNC],
   m4_popdef([FUNC])
   m4_popdef([func])
 ])
+
+# gl_COMMON_DOUBLE_MATHFUNC(FUNC)
+# -------------------------------
+# tests whether the function FUNC is available in libc or libm.
+# It sets FUNC_LIBM to empty or "-lm" accordingly.
+# FUNC must be one of the following functions, that are present on all systems
+# and provided by libm on all systems except MacOS X, BeOS, Haiku:
+#   acos asin atan atan2 cbrt copysign cos cosh erf erfc exp fmod hypot j0 j1
+#   jn lgamma log log10 log1p pow remainder sin sinh sqrt tan tanh y0 y1 yn
+
+AC_DEFUN([gl_COMMON_DOUBLE_MATHFUNC],
+[
+  AC_REQUIRE([gl_COMMON_DOUBLE_MATHFUNC_TEST])
+  m4_pushdef([FUNC], [translit([$1],[abcdefghijklmnopqrstuvwxyz],
+                                    [ABCDEFGHIJKLMNOPQRSTUVWXYZ])])
+  FUNC[]_LIBM="$POW_LIBM"
+  AC_SUBST(FUNC[_LIBM])
+  m4_popdef([FUNC])
+])
+
+AC_DEFUN([gl_COMMON_DOUBLE_MATHFUNC_TEST],
+[
+  dnl We could use any of the following:
+  dnl gl_MATHFUNC([acos], [double], [(double)])
+  dnl gl_MATHFUNC([asin], [double], [(double)])
+  dnl gl_MATHFUNC([atan], [double], [(double)])
+  dnl gl_MATHFUNC([atan2], [double], [(double, double)])
+  dnl gl_MATHFUNC([cbrt], [double], [(double)])
+  dnl gl_MATHFUNC([copysign], [double], [(double, double)])
+  dnl gl_MATHFUNC([cos], [double], [(double)])
+  dnl gl_MATHFUNC([cosh], [double], [(double)])
+  dnl gl_MATHFUNC([erf], [double], [(double)])
+  dnl gl_MATHFUNC([erfc], [double], [(double)])
+  dnl gl_MATHFUNC([exp], [double], [(double)])
+  dnl gl_MATHFUNC([fmod], [double], [(double, double)])
+  dnl gl_MATHFUNC([hypot], [double], [(double, double)])
+  dnl gl_MATHFUNC([j0], [double], [(double)])
+  dnl gl_MATHFUNC([j1], [double], [(double)])
+  dnl gl_MATHFUNC([jn], [double], [(int, double)])
+  dnl gl_MATHFUNC([lgamma], [double], [(double)])
+  dnl gl_MATHFUNC([log], [double], [(double)])
+  dnl gl_MATHFUNC([log10], [double], [(double)])
+  dnl gl_MATHFUNC([log1p], [double], [(double)])
+  dnl gl_MATHFUNC([pow], [double], [(double, double)])
+  dnl gl_MATHFUNC([remainder], [double], [(double, double)])
+  dnl gl_MATHFUNC([sin], [double], [(double)])
+  dnl gl_MATHFUNC([sinh], [double], [(double)])
+  dnl gl_MATHFUNC([sqrt], [double], [(double)])
+  dnl gl_MATHFUNC([tan], [double], [(double)])
+  dnl gl_MATHFUNC([tanh], [double], [(double)])
+  dnl gl_MATHFUNC([y0], [double], [(double)])
+  dnl gl_MATHFUNC([y1], [double], [(double)])
+  dnl gl_MATHFUNC([yn], [double], [(int, double)])
+  gl_MATHFUNC([pow], [double], [(double, double)])
+])

diff --git a/m4/sqrt.m4 b/m4/sqrt.m4
index d87648c..dd87ed2 100644 (file)
--- a/m4/sqrt.m4
+++ b/m4/sqrt.m4
@@ -1,4 +1,4 @@
-# sqrt.m4 serial 2
+# sqrt.m4 serial 3
 dnl Copyright (C) 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -6,5 +6,5 @@ dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_SQRT],
 [
-  gl_MATHFUNC([sqrt], [double], [(double)])
+  gl_COMMON_DOUBLE_MATHFUNC([sqrt])
 ])

diff --git a/modules/acos b/modules/acos
index 8f03317..cceee87 100644 (file)
--- a/modules/acos
+++ b/modules/acos
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([acos], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([acos])
 
 Makefile.am:
 

diff --git a/modules/asin b/modules/asin
index 5bbef73..e6c496b 100644 (file)
--- a/modules/asin
+++ b/modules/asin
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([asin], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([asin])
 
 Makefile.am:
 

diff --git a/modules/atan b/modules/atan
index fd1abe5..9c59601 100644 (file)
--- a/modules/atan
+++ b/modules/atan
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([atan], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([atan])
 
 Makefile.am:
 

diff --git a/modules/atan2 b/modules/atan2
index 22820a1..877cc6b 100644 (file)
--- a/modules/atan2
+++ b/modules/atan2
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([atan2], [double], [(double, double)])
+gl_COMMON_DOUBLE_MATHFUNC([atan2])
 
 Makefile.am:
 

diff --git a/modules/cbrt b/modules/cbrt
index bcfb293..fe015ee 100644 (file)
--- a/modules/cbrt
+++ b/modules/cbrt
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([cbrt], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([cbrt])
 
 Makefile.am:
 

diff --git a/modules/copysign b/modules/copysign
index 5318e80..c632806 100644 (file)
--- a/modules/copysign
+++ b/modules/copysign
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([copysign], [double], [(double, double)])
+gl_COMMON_DOUBLE_MATHFUNC([copysign])
 
 Makefile.am:
 

diff --git a/modules/cos b/modules/cos
index 5ed327d..eae9a4d 100644 (file)
--- a/modules/cos
+++ b/modules/cos
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([cos], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([cos])
 
 Makefile.am:
 

diff --git a/modules/cosh b/modules/cosh
index efaee3a..4fd5c3a 100644 (file)
--- a/modules/cosh
+++ b/modules/cosh
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([cosh], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([cosh])
 
 Makefile.am:
 

diff --git a/modules/erf b/modules/erf
index 02243bd..551dddb 100644 (file)
--- a/modules/erf
+++ b/modules/erf
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([erf], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([erf])
 
 Makefile.am:
 

diff --git a/modules/erfc b/modules/erfc
index 5f93d80..d891e92 100644 (file)
--- a/modules/erfc
+++ b/modules/erfc
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([erfc], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([erfc])
 
 Makefile.am:
 

diff --git a/modules/exp b/modules/exp
index 6a7a685..f90548a 100644 (file)
--- a/modules/exp
+++ b/modules/exp
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([exp], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([exp])
 
 Makefile.am:
 

diff --git a/modules/fmod b/modules/fmod
index 43997d8..ae82f4b 100644 (file)
--- a/modules/fmod
+++ b/modules/fmod
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([fmod], [double], [(double, double)])
+gl_COMMON_DOUBLE_MATHFUNC([fmod])
 
 Makefile.am:
 

diff --git a/modules/hypot b/modules/hypot
index 2c3f66f..fc13752 100644 (file)
--- a/modules/hypot
+++ b/modules/hypot
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([hypot], [double], [(double, double)])
+gl_COMMON_DOUBLE_MATHFUNC([hypot])
 
 Makefile.am:
 

diff --git a/modules/j0 b/modules/j0
index 1dc9d44..b06d76d 100644 (file)
--- a/modules/j0
+++ b/modules/j0
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([j0], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([j0])
 
 Makefile.am:
 

diff --git a/modules/j1 b/modules/j1
index d4e0b3c..9c18914 100644 (file)
--- a/modules/j1
+++ b/modules/j1
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([j1], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([j1])
 
 Makefile.am:
 

diff --git a/modules/jn b/modules/jn
index ef8b418..adcc9b1 100644 (file)
--- a/modules/jn
+++ b/modules/jn
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([jn], [double], [(int, double)])
+gl_COMMON_DOUBLE_MATHFUNC([jn])
 
 Makefile.am:
 

diff --git a/modules/lgamma b/modules/lgamma
index 40cc49c..81d1704 100644 (file)
--- a/modules/lgamma
+++ b/modules/lgamma
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([lgamma], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([lgamma])
 
 Makefile.am:
 

diff --git a/modules/log b/modules/log
index 9527969..cbee37b 100644 (file)
--- a/modules/log
+++ b/modules/log
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([log], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([log])
 
 Makefile.am:
 

diff --git a/modules/log10 b/modules/log10
index bb857a2..a0b4c29 100644 (file)
--- a/modules/log10
+++ b/modules/log10
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([log10], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([log10])
 
 Makefile.am:
 

diff --git a/modules/log1p b/modules/log1p
index 6b387e2..955893b 100644 (file)
--- a/modules/log1p
+++ b/modules/log1p
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([log1p], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([log1p])
 
 Makefile.am:
 

diff --git a/modules/pow b/modules/pow
index dbcc10c..dec50d1 100644 (file)
--- a/modules/pow
+++ b/modules/pow
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([pow], [double], [(double, double)])
+gl_COMMON_DOUBLE_MATHFUNC([pow])
 
 Makefile.am:
 

diff --git a/modules/remainder b/modules/remainder
index 9d25419..36d75bd 100644 (file)
--- a/modules/remainder
+++ b/modules/remainder
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([remainder], [double], [(double, double)])
+gl_COMMON_DOUBLE_MATHFUNC([remainder])
 
 Makefile.am:
 

diff --git a/modules/sin b/modules/sin
index 87ed8e6..ba5e92d 100644 (file)
--- a/modules/sin
+++ b/modules/sin
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([sin], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([sin])
 
 Makefile.am:
 

diff --git a/modules/sinh b/modules/sinh
index ffcef67..d02ef56 100644 (file)
--- a/modules/sinh
+++ b/modules/sinh
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([sinh], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([sinh])
 
 Makefile.am:
 

diff --git a/modules/tan b/modules/tan
index 6ec8a58..4f14961 100644 (file)
--- a/modules/tan
+++ b/modules/tan
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([tan], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([tan])
 
 Makefile.am:
 

diff --git a/modules/tanh b/modules/tanh
index c7f0789..6969caf 100644 (file)
--- a/modules/tanh
+++ b/modules/tanh
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([tanh], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([tanh])
 
 Makefile.am:
 

diff --git a/modules/y0 b/modules/y0
index de188af..0c0ea34 100644 (file)
--- a/modules/y0
+++ b/modules/y0
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([y0], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([y0])
 
 Makefile.am:
 

diff --git a/modules/y1 b/modules/y1
index dbe884d..e5ae84f 100644 (file)
--- a/modules/y1
+++ b/modules/y1
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([y1], [double], [(double)])
+gl_COMMON_DOUBLE_MATHFUNC([y1])
 
 Makefile.am:
 

diff --git a/modules/yn b/modules/yn
index 63d05f6..8db1308 100644 (file)
--- a/modules/yn
+++ b/modules/yn
@@ -7,7 +7,7 @@ m4/mathfunc.m4
 Depends-on:
 
 configure.ac:
-gl_MATHFUNC([yn], [double], [(int, double)])
+gl_COMMON_DOUBLE_MATHFUNC([yn])
 
 Makefile.am: