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mingw-w64 cmake: Don't find libm

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mingw-w64 will provide libm symbols by default without -lm and mingw-64's
libm is just a stub.

This is just to make sure that on systems with msys2 and also cygwin, cmake
doesn't find a libm that actually contains math functions.
This commit is contained in:
Chris Degawa 2019-04-09 13:18:30 -05:00 committed by Christopher Degawa
parent 06d6e36187
commit 16377d39ea
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GPG Key ID: 34D365D50F3BE490
1 changed files with 4 additions and 2 deletions
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6
CMakeLists.txt
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@ -203,7 +203,9 @@ else()
endif() endif()
# Find libm, if available # Find libm, if available
find_library(M_LIBRARY m) if(NOT MINGW)
find_library(M_LIBRARY m)
endif()
check_include_file(assert.h HAVE_ASSERT_H) check_include_file(assert.h HAVE_ASSERT_H)
check_include_file(dlfcn.h HAVE_DLFCN_H) check_include_file(dlfcn.h HAVE_DLFCN_H)
@ -671,7 +673,7 @@ endif()
# Libraries required by libtiff # Libraries required by libtiff
set(TIFF_LIBRARY_DEPS) set(TIFF_LIBRARY_DEPS)
if(M_LIBRARY) if(NOT MINGW AND M_LIBRARY)
list(APPEND TIFF_LIBRARY_DEPS ${M_LIBRARY}) list(APPEND TIFF_LIBRARY_DEPS ${M_LIBRARY})
endif() endif()
if(ZLIB_LIBRARIES) if(ZLIB_LIBRARIES)