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# Detect eigen3 + eigen2, then use this priority list to determine
# which eigen to use:
#
# Priority
# 3. EIGEN3DIR / EIGEN2DIR if set
# 1. OPENSCAD_LIBRARIES eigen3
# 2. OPENSCAD_LIBRARIES eigen2
# 4. system's standard include paths for eigen3
# 5. system's standard include paths for eigen2
eigen {
# read environment variables
OPENSCAD_LIBRARIES_DIR = $$(OPENSCAD_LIBRARIES)
EIGEN2_DIR = $$(EIGEN2DIR)
EIGEN3_DIR = $$(EIGEN3DIR)
CONFIG(mingw-cross-env) {
EIGEN_INCLUDEPATH = mingw-cross-env/include/eigen2
}
# Optionally specify location of Eigen3 using the
# OPENSCAD_LIBRARIES env. variable
!isEmpty(OPENSCAD_LIBRARIES_DIR) {
isEmpty(EIGEN_INCLUDEPATH) {
exists($$OPENSCAD_LIBRARIES_DIR/include/eigen3) {
EIGEN_INCLUDEPATH = $$OPENSCAD_LIBRARIES_DIR/include/eigen3
}
}
isEmpty(EIGEN_INCLUDEPATH) {
exists($$OPENSCAD_LIBRARIES_DIR/include/eigen2) {
EIGEN_INCLUDEPATH = $$OPENSCAD_LIBRARIES_DIR/include/eigen2
}
}
}
# Optionally specify location of Eigen using the
# EIGEN3DIR env. variable
!isEmpty(EIGEN3_DIR) {
EIGEN_INCLUDEPATH = $$EIGEN3_DIR
message("EIGEN3 location: $$EIGEN3_INCLUDEPATH")
}
# Optionally specify location of Eigen using the
# EIGEN2DIR env. variable
!isEmpty(EIGEN2_DIR) {
EIGEN_INCLUDEPATH = $$EIGEN2_DIR
message("EIGEN2 location: $$EIGEN2_INCLUDEPATH")
}
isEmpty(EIGEN_INCLUDEPATH) {
freebsd-g++: EIGEN_INCLUDEPATH = /usr/local/include/eigen3
macx: EIGEN_INCLUDEPATH = /opt/local/include/eigen3
linux*|hurd*: EIGEN_INCLUDEPATH = /usr/include/eigen3
netbsd*: EIGEN_INCLUDEPATH = /usr/pkg/include/eigen3
!exists($$EIGEN_INCLUDEPATH) {
freebsd-g++: EIGEN_INCLUDEPATH = /usr/local/include/eigen2
macx: EIGEN_INCLUDEPATH = /opt/local/include/eigen2
linux*|hurd*: EIGEN_INCLUDEPATH = /usr/include/eigen2
netbsd*: EIGEN_INCLUDEPATH = /usr/pkg/include/eigen2
}
}
# disable Eigen SIMD optimizations for platforms where it breaks compilation
!macx {
!freebsd-g++ {
QMAKE_CXXFLAGS += -DEIGEN_DONT_ALIGN
}
}
# EIGEN being under 'include/eigen[2-3]' needs special prepending
QMAKE_INCDIR_QT = $$EIGEN_INCLUDEPATH $$QMAKE_INCDIR_QT
} # eigen
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