Remove automake support

Since the cmake tool chain is now stable, the automake tool chain is removed from musrfit.
This makes documentation and code less cluttered.

src/external/libGbGLF/CMakeLists.txt

@@ -0,0 +1,64 @@
+# GbGLF library ---------------------------------------------------------------
+
+#--- generate necessary dictionaries ------------------------------------------
+set(MUSRFIT_INC ${CMAKE_SOURCE_DIR}/src/include)
+set(GBGLF_INC ${CMAKE_SOURCE_DIR}/src/external/libGbGLF)
+set(PREFIX_INC ${CMAKE_INSTALL_PREFIX}/include)
+
+root_generate_dictionary(
+  PGbGLFDict 
+  -I${GBGLF_INC} 
+  -I${CMAKE_CURRENT_SOURCE_DIR}
+  -I${PREFIX_INC} 
+  PGbGLF.h 
+  LINKDEF PGbGLFLinkDef.h
+  OPTIONS -inlineInputHeader
+  MODULE PGbGLF
+)
+
+#--- create pkg-config info ---------------------------------------------------
+set(PGBGLF_VERSION "1.0.0")
+# nothing more for now
+
+#--- lib creation -------------------------------------------------------------
+add_library(PGbGLF SHARED
+  PGbGLF.cpp
+  PGbGLFDict.cxx
+)
+#--- make sure that the include directory is found ----------------------------
+target_include_directories(
+  PGbGLF BEFORE PRIVATE 
+    $<BUILD_INTERFACE:${FFTW3_INCLUDE_DIR}> 
+    $<BUILD_INTERFACE:${MUSRFIT_INC}>
+    $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}>
+)
+
+#--- set target properties, e.g. version --------------------------------------
+set_target_properties(PGbGLF
+  PROPERTIES
+    VERSION ${PGBGLF_VERSION}
+)
+
+#--- add library dependencies -------------------------------------------------
+target_link_libraries(PGbGLF ${FFTW3_LIBRARY} ${ROOT_LIBRARIES} PUserFcnBase)
+
+#--- install PGbGLF solib -----------------------------------------------------
+install(TARGETS PGbGLF DESTINATION lib)
+
+#--- install root pcm's and rootmaps ------------------------------------------
+install(
+  FILES ${CMAKE_CURRENT_BINARY_DIR}/libPGbGLF_rdict.pcm 
+        ${CMAKE_CURRENT_BINARY_DIR}/libPGbGLF.rootmap
+  DESTINATION lib
+)
+
+#--- install PGbGLF header ----------------------------------------------------
+install(
+  FILES
+    PGbGLF.h 
+  DESTINATION 
+    include
+)
+
+#--- install pkg-config info --------------------------------------------------
+# nothing here for now