diff options
| -rw-r--r-- | CMakeLists.txt | 22 | ||||
| -rw-r--r-- | configure.ac | 14 |
2 files changed, 36 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index eb0cbcba..a6d5ae05 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -65,6 +65,28 @@ if (HAVE_PTHREAD_MUTEX_RECURSIVE_DEFN) add_definitions(-DHAVE_PTHREAD_MUTEX_RECURSIVE=1) endif() +include (CheckCSourceCompiles) +if (MSVC) + set (CMAKE_REQUIRED_FLAGS "${CMAKE_C_FLAGS} /WX") +else + set (CMAKE_REQUIRED_LIBRARIES m) + set (CMAKE_REQUIRED_FLAGS "${CMAKE_C_FLAGS} -Werror") +endif () +# Check whether the C99 math function: hypot, atanh, etc. are available. +check_c_source_compiles ( + "#include <math.h> +int main() { + int q; + return (int)(hypot(3.0, 4.0) + atanh(0.8) + cbrt(8.0) + + remquo(100.0, 90.0, &q) + + remainder(100.0, 90.0) + copysigna(1.0, -0.0)); +}\n" C99_MATH) +if (C99_MATH) + add_definitions (-DHAVE_C99_MATH=1) +else () + add_definitions (-DHAVE_C99_MATH=0) +endif () + boost_report_value(PROJ_PLATFORM_NAME) boost_report_value(PROJ_COMPILER_NAME) diff --git a/configure.ac b/configure.ac index 68df28ec..e99389ee 100644 --- a/configure.ac +++ b/configure.ac @@ -29,6 +29,20 @@ CFLAGS="$save_CFLAGS" dnl We check for headers AC_HEADER_STDC +dnl Check for C99 math functions +save_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -Wall -Werror" +AC_MSG_CHECKING([for C99 math functions]) +AC_LINK_IFELSE([AC_LANG_PROGRAM( + [#include <math.h>], + [int q; + return (int)(hypot(3.0, 4.0) + atanh(0.8) + cbrt(8.0) + + remquo(100.0, 90.0, &q) + + remainder(100.0, 90.0) + copysign(1.0, -0.0));])], + [AC_MSG_RESULT([yes]);C99_MATH="-DHAVE_C99_MATH=1"], + [AC_MSG_RESULT([no]);C99_MATH="-DHAVE_C99_MATH=0"]) +CFLAGS="$save_CFLAGS $C99_MATH" + AC_CHECK_FUNC(localeconv, [AC_DEFINE(HAVE_LOCALECONV,1,[Define to 1 if you have localeconv])]) dnl --------------------------------------------------------------------------- |