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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1352 0778d3d1-df1d-0410-868b-ea421aaaa00d
77 lines
2.2 KiB
CMake
77 lines
2.2 KiB
CMake
#
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# some tests migrated from libsamplerate's acinclude.m4 - Tobias Doerffel, 2008
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#
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INCLUDE(CheckCSourceCompiles)
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INCLUDE(CheckCSourceRuns)
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SET(CMAKE_REQUIRED_LIBRARIES_ORIG ${CMAKE_REQUIRED_LIBRARIES})
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SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} -lm)
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SET(C99_MATH " #define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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")
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SET(TEST_LRINT "int main( void )
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{
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if (!lrint(3.14159)) lrint(2.7183);
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return( 0 );
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}")
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SET(TEST_LRINTF "int main( void )
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{
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if (!lrintf(3.14159)) lrintf(2.7183);
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return( 0 );
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}")
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CHECK_C_SOURCE_COMPILES("${C99_MATH}${TEST_LRINT}" HAVE_LRINT)
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CHECK_C_SOURCE_COMPILES("${C99_MATH}${TEST_LRINTF}" HAVE_LRINTF)
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CHECK_C_SOURCE_RUNS("
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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int main (void)
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{ double fval ;
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int k, ival ;
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fval = 1.0 * 0x7FFFFFFF ;
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for (k = 0 ; k < 100 ; k++)
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{ ival = (lrint (fval)) >> 24 ;
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if (ival != 127)
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return 1 ;
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fval *= 1.2499999 ;
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} ;
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return 0 ;
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}
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" CPU_CLIPS_POSITIVE)
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CHECK_C_SOURCE_RUNS("
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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int main (void)
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{ double fval ;
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int k, ival ;
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fval = -8.0 * 0x10000000 ;
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for (k = 0 ; k < 100 ; k++)
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{ ival = (lrint (fval)) >> 24 ;
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if (ival != -128)
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return 1 ;
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fval *= 1.2499999 ;
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} ;
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return 0 ;
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}
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" CPU_CLIPS_NEGATIVE)
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SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES_ORIG})
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