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

diff --git a/ChangeLog b/ChangeLog
index f94e401a92ffff764c918f74b283ac0cc7846008..335da1a723f05583b89d22e745f5744e4f0912b9 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,41 @@
+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.

diff --git a/m4/mathfunc.m4 b/m4/mathfunc.m4
index 5e79d4581aa48add2b48f58b3f1ad8704e9cf865..d09aacaa328c45f61e1ce797ae3a68e599ae8723 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 d87648cc9f076b3d3e47df5f5ab5de2217f689b1..dd87ed24e3e4d5fbecf881c094c80eb44c760955 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 8f03317c38dbdfb8b1a4ef3672d792339d3e0251..cceee873c7b77e5f82e9245e8188fb1d2f754795 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 5bbef73a0c2770a4fdb64b5a23ddfaadb2764b93..e6c496bc8fc1d55b918fb1f26e10d7ee1094afa2 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 fd1abe5efcf43cc842831cf081fdebcc393a3fc7..9c5960194d4be5f12503247e9ccdb3a5ed7d7e4c 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 22820a1f0420663bd3a43552dfdc973e8288f13f..877cc6bd2f7c30cbe74bc13fc0d7dd2f50c0f767 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 bcfb2936e00107b615696e1ff55f2514216f11b0..fe015ee05cc5b080df82be3d93861f1ddd6e7166 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 5318e80271f876ad42244fe9261e38db780eed34..c63280655afb504d69049dd76d84c3c7a471513e 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 5ed327d42e7fe3ef59044c04d237c2c6d056f46b..eae9a4d28e31848b92c039298acc5e2ed55b7580 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 efaee3a03b82e1d6183e26df31a602368da518ed..4fd5c3a9044b32136f83e5b73cc3a81b983cdb93 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 02243bdc72efc1312710386a9129ce2d754808f3..551dddb3b8b277b2d7f378edd48859cf8020dd42 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 5f93d8006df06543f1fb71ea6929d0e74e20f8e3..d891e92771b5702c3e3b4fc6b4b862951ba28016 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 6a7a6854e9b6a4d5aa9ca9cbef14ef7c99d9f9ed..f90548a00a31c64cdc1d017f218f218e50ef93c0 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 43997d8b25767c6a09daf11e10a6b0cecfc15522..ae82f4b11b3ac8649e8c16ce96e1ba308d30f65b 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 2c3f66ff2ba06d800085fa6f3609e5b618312ac0..fc13752cec3aa51a6f44bf37c823ee2f358eff94 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 1dc9d44dd73766a7a2940f18e35afc7ffb191b98..b06d76df07debc6c481efea1a1ca49c8c57621af 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 d4e0b3cbe0fd79cc2436843c45d0e95a680ad1a6..9c189142142bd7025b5223325f8bd86e714ad856 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 ef8b418762aa42f4039a162424bd76b7566d45db..adcc9b1aaea2d8c442d8efaaf05ca1ffb0b7a817 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 40cc49c3235f287e168f9b62a789752b9044dc6e..81d1704e3a98a358a46d5f7e93263147ae38d4f6 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 95279699fac4fa54212c9fbf619680d37d8f4c3b..cbee37bc897c6ed6c6f737c35a9dd7127c0310a6 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 bb857a277fb5cdf0f75456f7d7c1678685cf82c4..a0b4c2929686748e13d57da4f630e6f27ca801c1 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 6b387e206016f93ad5032bee90ea9da76037fb15..955893b73e9d97976b2b99db6d93e77fc41ee1ba 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 dbcc10c71e431e132f0984e8daa66ba7a4f37c6f..dec50d1bc2b558e15c6363245104a77cbe3ae25e 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 9d25419f623b1ab8302e954bdce7aefecf55f9ee..36d75bdc160c81dbcaa85466e017a06612d98653 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 87ed8e663246f92f427ef1814b5c33c75298c0cb..ba5e92db754a473374df6d2c9f168277b56942be 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 ffcef67d7217b2914156efe2d6a3e40bd317b045..d02ef56d2562e386e61baf324e376e2b1d4ed97d 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 6ec8a587f9306d9f9d072df4cb4057b15cd1e469..4f14961fa1886cb243be678a75d792e4aaffa46c 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 c7f078943f40477659d648b4156c18d9fdcca5e2..6969caf53f69f8867f59afbfbeb79024da5ce858 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 de188af1c3ed59c6507b7da1e0526048391023de..0c0ea34d5769865d29ab42c4dcce51ef36c81d47 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 dbe884d48eb510af7d98fd3a63cb685b5ce383ad..e5ae84f2dba5ebbccb808e1a80b61bbf77d5a45a 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 63d05f64728a138235b9d697e63bba381c9e9d5c..8db1308494112ae521142a79a8ad800f803e8d2c 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: