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Add openmp to fftw3 #4351

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Feb 14, 2019
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Add openmp to fftw3 #4351

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3 changes: 3 additions & 0 deletions ports/fftw3/CONTROL
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Original file line number Diff line number Diff line change
@@ -1,3 +1,6 @@
Source: fftw3
Version: 3.3.7-2
Description: FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data (as well as of even/odd data, i.e. the discrete cosine/sine transforms or DCT/DST).

Feature: openmp
Description: Builds openmp enabled lib
17 changes: 17 additions & 0 deletions ports/fftw3/omp_test.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,17 @@
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f3cfc20..9826bff 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -385,6 +385,12 @@ if (BUILD_TESTS)
target_link_libraries (bench ${fftw3_lib})
endif ()

+ if (ENABLE_OPENMP)
+ target_link_libraries (bench ${fftw3_lib}_omp)
+ else ()
+ target_link_libraries (bench ${fftw3_lib})
+ endif ()
+

enable_testing ()

13 changes: 13 additions & 0 deletions ports/fftw3/portfile.cmake
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Expand Up @@ -17,12 +17,25 @@ vcpkg_download_distfile(ARCHIVE

vcpkg_extract_source_archive(${ARCHIVE})

vcpkg_apply_patches(
SOURCE_PATH ${SOURCE_PATH}
PATCHES
${CMAKE_CURRENT_LIST_DIR}/omp_test.patch
)

if ("openmp" IN_LIST FEATURES)
set(ENABLE_OPENMP ON)
else()
set(ENABLE_OPENMP OFF)
endif()

foreach(PRECISION ENABLE_DEFAULT_PRECISION ENABLE_FLOAT ENABLE_LONG_DOUBLE)
vcpkg_configure_cmake(
SOURCE_PATH ${SOURCE_PATH}
PREFER_NINJA
OPTIONS
-D${PRECISION}=ON
-DENABLE_OPENMP=${ENABLE_OPENMP}
)

vcpkg_install_cmake()
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