Hello All, The pre-release candidate 1 of MELT 0.9.5 is available for testing on http://gcc-melt.org/melt-0.9.5rc1-plugin-for-gcc-4.6-or-4.7.tar.gz as a gzipped tar archive of 4473286 bytes and md5sum ae00b9bd31f481e1bbc406711ca4c2f4. extracted from MELT branch 185969, march 29th 2012
You could try building it e.g. with make MELTGCC=gcc-4.7 GCCMELT_CC=gcc-4.7 It seems to be also buildable for GCC 4.6 with make MELTGCC=gcc-4.6 GCCMELT_CC=gcc-4.6 (both commands sort of work, with perhaps minor issues very late in the build process; I'm not very afraid of these) But I'm trying to code a makefile which would autodetect in GCC 4.7 was compiled in C++ mode (or if the GCC was compiled in C mode, then it is probably a 4.6 or a 4.7 configured in a weird fashion). So far I tried to code in my Makefile the following trick ############################################################################ ## the compiler with which melt.so is used ifndef MELTGCC MELTGCC = $(or $(CC),gcc) endif ## gives yes if MELTGCC has been built with C++ or else the empty string MELTGCC_BUILD_WITH_CXX = $(shell grep -q 'define +ENABLE_BUILD_WITH_CXX +1' \ `$(MELTGCC) -print-file-name=plugin/include/auto-host.h` && echo yes) ## The compiler and flags used to build the melt.so plugin and to ## compile MELT generated code. Notice that melt-module.mk use the ## same Make variables. For a melt plugin to GCC 4.7 or later, that ## could be a C++ compiler! eg ## make MELTGCC=gcc-4.7 GCCMELT_CC=g++-4.7 ## hence we add a test if $(MELTGCC) was built with C++ or with C ifeq ($(strip $(MELTGCC_BUILD_WITH_CXX)),) GCCMELT_CC ?= $(or $(CC),gcc) -Wc++-compat else GCCMELT_CC ?= $(or $(CXX),g++) endif GCCMELT_CFLAGS ?= -g -O -Wall $(info MELT plugin for MELTGCC= $(MELTGCC) to be compiled with GCCMELT_CC= $(GCCMELT_CC) \ flags $(GCCMELT_CFLAGS) $(if $(MELTGCC_BUILD_WITH_CXX),built with C++ \ $(MELTGCC_BUILD_WITH_CXX))) ### rest of makefile skipped ############################################################################# but for some reason it does not work. (Maybe a := versus = make variable thing). Do you have any suggestions about such things? Assuming a plugin whose source code should work with both 4.6 & 4.7, how would you autodetect if GCC was compiled in C++ or in C mode? What am I doing wrong? Regards. -- Basile STARYNKEVITCH http://starynkevitch.net/Basile/ email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359 8, rue de la Faiencerie, 92340 Bourg La Reine, France *** opinions {are only mine, sont seulement les miennes} ***
