java.lang.NullPointerException
# Makefile rules for the semigroups package
java.lang.NullPointerException
KEXT_NAME = semigroups

KEXT_CXXFLAGS = @LIBSEMIGROUPS_CFLAGS@ -std=gnu++14 -O3
KEXT_LDFLAGS = @LIBSEMIGROUPS_RPATH@ @LIBSEMIGROUPS_LIBS@

# configure settings
GAPPATH = @GAPROOT@
HPCOMBI_CONSTEXPR_FUN_ARGS = @HPCOMBI_CONSTEXPR_FUN_ARGS@
LIBSEMIGROUPS_HPCOMBI_ENABLED = @LIBSEMIGROUPS_HPCOMBI_ENABLED@
WITH_INCLUDED_LIBSEMIGROUPS = @WITH_INCLUDED_LIBSEMIGROUPS@
SYS_IS_CYGWIN = @SYS_IS_CYGWIN@
abs_top_builddir = @abs_top_builddir@

# sources
KEXT_SOURCES =  src/bipart.cpp
KEXT_SOURCES += src/cong.cpp
KEXT_SOURCES += src/conglatt.cpp
KEXT_SOURCES += src/froidure-pin-base.cpp
KEXT_SOURCES += src/froidure-pin-bipart.cpp
KEXT_SOURCES += src/froidure-pin-bmat.cpp
KEXT_SOURCES += src/froidure-pin-fallback.cpp
KEXT_SOURCES += src/froidure-pin-matrix.cpp
KEXT_SOURCES += src/froidure-pin-max-plus-mat.cpp
KEXT_SOURCES += src/froidure-pin-min-plus-mat.cpp
KEXT_SOURCES += src/froidure-pin-pbr.cpp
KEXT_SOURCES += src/froidure-pin-pperm.cpp
KEXT_SOURCES += src/froidure-pin-transf.cpp
KEXT_SOURCES += src/pkg.cpp
KEXT_SOURCES += src/to_gap.cpp
KEXT_SOURCES += gapbind14/src/gapbind14.cpp

KEXT_CPPFLAGS = -Igapbind14/include/

ifdef HPCOMBI_CONSTEXPR_FUN_ARGS
KEXT_CPPFLAGS += -DHPCOMBI_CONSTEXPR_FUN_ARGS
endif

ifdef LIBSEMIGROUPS_HPCOMBI_ENABLED
KEXT_CXXFLAGS += @HPCOMBI_CXXFLAGS@
endif

ifdef WITH_INCLUDED_LIBSEMIGROUPS
# FIXME(later) all the include paths should point into bin/include/ and not to
# the sources, or otherwise we should stop make installing into bin
ifdef LIBSEMIGROUPS_HPCOMBI_ENABLED
KEXT_CPPFLAGS += -Ilibsemigroups/extern/HPCombi/include
KEXT_CPPFLAGS += -Ilibsemigroups/extern/HPCombi/include/fallback
endif
KEXT_CPPFLAGS += -Ilibsemigroups/extern/fmt-8.0.1/include
KEXT_CPPFLAGS += -Ilibsemigroups/include
endif
KEXT_CPPFLAGS += -DFMT_HEADER_ONLY

ifdef KERNEL_DEBUG
KEXT_CPPFLAGS += -DDEBUG
else
KEXT_CPPFLAGS += -DNDEBUG
endif

KEXT_CXXFLAGS += $(KEXT_CPPFLAGS) # HACK: there is no KEXT_CPPFLAGS

# HACK: On cygwin, add this flag to work around issues where fork() sometimes
# fails on Cygwin when semigroups.so is loaded into GAP. This will hopefully
# become unnecessary with GAP 4.13, which will automatically add this to the
# flags.
ifdef SYS_IS_CYGWIN
KEXT_LDFLAGS += -Wl,--enable-auto-image-base
endif

# include shared GAP package build system
KEXT_USE_AUTOCONF = 1
include Makefile.gappkg

# ensure pkgconfig.h is built
$(KEXT_OBJS): gen/pkgconfig.h

ifdef WITH_INCLUDED_LIBSEMIGROUPS
# ensure libsemigroups is installed into bin before compiling
$(KEXT_OBJS): bin/include/libsemigroups/libsemigroups.hpp

# the following is only run if BUILT_SOURCES is wound up
bin/include/libsemigroups/libsemigroups.hpp:
 $(MAKE) -C libsemigroups install
 # Cygwin only looks for DLLs in the same directory as the executable
 # resides in. The following achieves that assuming that the GAP
 # being used was self-compiled by the user. This supports
 # both older GAPs with libtool (first) and GAP without libtool (second)
 if test -f bin/bin/cygsemigroups*.dll ; then if test -d $(GAPPATH)/.libs; then cp bin/bin/cygsemigroups*.dll $(GAPPATH)/.libs/ ; fi ; fi
 if test -f bin/bin/cygsemigroups*.dll ; then cp bin/bin/cygsemigroups*.dll $(GAPPATH)/ ; fi

endif

clean:
 find . -name '*.gcda' -delete

lint:
 etc/gaplint.sh
 etc/cpplint.sh

format:
 clang-format -i src/*.*pp

.PHONY: lint format

superclean: distclean
 git clean -xdf --exclude *.swp --exclude *.swo
.PHONY: superclean