Automake 1.7.2 & using implicit rules

[Juraj Hercek]

Hi,

I've found a problem I'm unable to solve on my own. I've read about
handling new file extensions here:
http://www.gnu.org/manual/automake-1.7.2/html_chapter/automake_18.html#SEC103 

. I've created simple example to test this feature but it didn't work,
because am_amktest_OBJECTS in generated Makefile.in is empty. Can you help?

Also is there a way how to handle this case without specifying all the 
.c .cpp .lxx files?:
1) filemaker creates basicaly 3 files (generated1.cpp, generated2.c 
generated3.lxx) from one source file (source.src). I.e., I specify this 
cmd line in order to get .c .cpp and .lxx files: "filemaker source.src"
2) my first question is whether there is a way how to specify only 
source.src in Makefile.am and all generated files (.c .cpp .lxx) will be 
compiled and linked into program/library?
3) my second question is how to specify source files, because this 
doesn't work (generated am_amktest_OBJECTS in Makefile.in is empty):
MY_SOURCES = source1.src source2.src source3.src
MY_CPP_FILES = $(MY_SOURCES:%.src=%.cpp)
MY_C_FILES = $(MY_SOURCES:%.src=%.c)
MY_LEX_FILES = $(MY_SOURCES:%.src=%.lxx)
libamktest_la_SOURCES = $(MY_CPP_FILES) $(MY_C_FILES) $(MY_LEX_FILES)


I've attached files used in my tests regarding handling new file extensions.

Thanks for reply.

Best Regards,
Juraj Hercek

AUTOMAKE_OPTIONS = foreign

%.cpp:  %.g
        @echo "Ok, it works"
        touch $@

bin_PROGRAMS = amktest

amktest_SOURCES = myfile.g


#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ(2.57)
AC_INIT(FULL-PACKAGE-NAME, VERSION, BUG-REPORT-ADDRESS)
AM_INIT_AUTOMAKE

AC_CONFIG_SRCDIR([main.cpp])
AC_CONFIG_HEADER([config.h])

# Checks for programs.
AC_PROG_CXX

# Checks for libraries.

# Checks for header files.

# Checks for typedefs, structures, and compiler characteristics.

# Checks for library functions.

AC_CONFIG_FILES(Makefile)
AC_OUTPUT