Fix when the _CFLAGS and _LIBS are provided and they contain a space
For example:
./configure PCRE_LIBS='-L/home/me/pcre/lib -lpcre'
Serial number 13 in autoconf macro archive
- Filter out all but -g... and -W... flags from OCTAVE_CXXFLAGS
- Use AX_CHECK_COMPILE_FLAG() to check if -O0 is supported, if so
add to end of OCTAVE_CXXFLAGS to ensure optimization is disabled
- Also run mkoctfile under "env -" to protect it from environment
- Also use more standard-compliant sed expressions
- Split current usage of CXXFLAGS into the conventional CPPFLAGS CXXFLAGS and LDFLAGS
- Split current usage of CFLAGS into the conventional CPPFLAGS CFLAGS and LDFLAGS
- This restores 'make whatever CXXFLAGS=-g' which stopped working during
the recently added suppport for out of source builds.
- LDFLAGS is currently empty, but is there for future use
- Examples/Makefile.in rules use SRCDIR as the relative source directory
- ./config.status replicates Examples/ source directory tree in build
directory, and copies each Makefile to build directory, prefixed with
a header which sets SRCDIR to source directory
- Examples/test-suite/.../Makefile.in set SRCDIR from Autoconf-set srcdir
- Examples/test-suite/errors/Makefile.in needs to filter out source
directory from SWIG error messages
- Lua: embedded interpreters are passed location of run-time test
- Python: copy run-time scripts to build directory because of 2to3
conversion; import_packages example copies __init__.py from source
directory; test-suite sets SCRIPTDIR to location of run-time tests
- Javascript: binding.gyp renamed to binding.gyp.in so that $srcdir
can be substituted with SRCDIR; removed './' from require() statements
so that NODE_PATH can be used to point Node.js to build directory
- source files and Makefiles need never be executable
- scripts are run directly by their interpreters in the
test suites, so also do not need to be executable
'brew install guile' does not complete within 10 minutes and the build is then killed by Travis
Suggestion and original script from travis-ci/travis-ci#1961
