diff options
Diffstat (limited to 'cmake/FindReadline.cmake')
| -rw-r--r-- | cmake/FindReadline.cmake | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/cmake/FindReadline.cmake b/cmake/FindReadline.cmake index 16dd72236..edac03027 100644 --- a/cmake/FindReadline.cmake +++ b/cmake/FindReadline.cmake @@ -8,12 +8,43 @@ find_path(Readline_INCLUDE_DIR NAMES readline/readline.h) find_library(Readline_LIBRARIES NAMES readline) -# Check which standard of readline is installed on the system. -# https://github.com/CVC4/CVC4/issues/702 +# Try to compile and link a simple program against readline. 'libs' can be +# used to specify additional required libraries. +function(try_compile_readline libs _result) + set(CMAKE_REQUIRED_QUIET TRUE) + set(CMAKE_REQUIRED_LIBRARIES ${Readline_LIBRARIES} ${libs}) + check_cxx_source_compiles( + " + #include <stdio.h> + #include <readline/readline.h> + int main() { readline(\"\"); return 0; } + " + ${_result} + ) + set(${_result} ${${_result}} PARENT_SCOPE) +endfunction() + if(Readline_INCLUDE_DIR) + # We only need to figure out readline's additional libraries dependencies if + # we compile static. + # Note: It might be the case that we need to check for more/other libraries + # depending on what the installed version of readline is linked against + # (e.g., termcap, ncurses, ...). + find_library(TINFO_LIBRARY tinfo) + try_compile_readline(${TINFO_LIBRARY} OK) + if(OK) + list(APPEND Readline_LIBRARIES ${TINFO_LIBRARY}) + else() + message(FATAL_ERROR + "Could not link against readline. " + "Check CMakeError.log for more details") + endif() + + # Check which standard of readline is installed on the system. + # https://github.com/CVC4/CVC4/issues/702 include(CheckCXXSourceCompiles) set(CMAKE_REQUIRED_QUIET TRUE) - set(CMAKE_REQUIRED_LIBRARIES readline) + set(CMAKE_REQUIRED_LIBRARIES ${Readline_LIBRARIES}) check_cxx_source_compiles( "#include <stdio.h> #include <readline/readline.h> @@ -33,3 +64,6 @@ mark_as_advanced( Readline_LIBRARIES Readline_COMPENTRY_FUNC_RETURNS_CHARPTR ) +if(Readline_LIBRARIES) + message(STATUS "Found Readline libs: ${Readline_LIBRARIES}") +endif() |