contrib/libucl/m4/gcov.m4

   1 # SYNOPSIS
   2 #
   3 #   Add code coverage support with gcov/lcov.
   4 #
   5 #   AX_CODE_COVERAGE()
   6 #
   7 # DESCRIPTION
   8 #
   9 #   Provides a --enable-coverage option which checks for available
  10 #   gcov/lcov binaries and provides ENABLE_CODE_COVERAGE conditional.
  11 #
  12 # LAST MODIFICATION
  13 #
  14 #   $Id: coverage.m4 40881 2013-08-20 17:54:39Z damon $
  15 #
  16 # COPYLEFT
  17 #
  18 #   Copyright (c) 2012 Roy H. Stogner <roystgnr@ices.utexas.edu>
  19 #   Copyright (c) 2010 Karl W. Schulz <karl@ices.utexas.edu>
  20 #
  21 #   Copying and distribution of this file, with or without modification, are
  22 #   permitted in any medium without royalty provided the copyright notice
  23 #   and this notice are preserved.
  24
  25 AC_DEFUN([AX_CODE_COVERAGE],
  26 [
  27
  28 AC_ARG_ENABLE(coverage, AC_HELP_STRING([--enable-coverage],[configure code coverage analysis tools]))
  29
  30 HAVE_GCOV_TOOLS=0
  31
  32 GCOV_FLAGS=""
  33
  34 if test "x$enable_coverage" = "xyes"; then
  35
  36    # ----------------------------
  37    # Check for gcov/lcov binaries
  38    # ----------------------------
  39
  40    AC_ARG_VAR([GCOV], [Coverage testing command])
  41    if test "x$GCOV" = "x"; then
  42     AC_PATH_PROG(GCOV, gcov, no)
  43    else
  44     AC_PATH_PROG(GCOV, $GCOV, no)
  45    fi
  46
  47    AC_PATH_PROG(LCOV, lcov, no)
  48    AC_PATH_PROG(GENHTML, genhtml)
  49
  50    # ----------------------------------
  51    # include coverage compiler options
  52    # ----------------------------------
  53    AC_MSG_CHECKING([for clang])
  54
  55    AC_COMPILE_IFELSE(
  56    [AC_LANG_PROGRAM([], [[
  57  #ifndef __clang__
  58    not clang
  59  #endif
  60  ]])],
  61  [CLANG=yes], [CLANG=no])
  62
  63    AC_MSG_RESULT([$CLANG])
  64    HAVE_GCOV_TOOLS=1
  65    COVERAGE_CFLAGS="-fprofile-arcs -ftest-coverage"
  66    COVERAGE_LDFLAGS="--coverage -fprofile-arcs -ftest-coverage"
  67    COVERAGE_OPTFLAGS="-O0"
  68
  69    # Test for C...
  70    CFLAGS="${GCOV_FLAGS} ${CFLAGS}"
  71    CXXFLAGS="${GCOV_FLAGS} ${CXXFLAGS}"
  72    if test "x$GCC" = "xyes" -a "x$CLANG" = "xno"; then
  73      COVERAGE_LIBS="-lgcov"
  74    else
  75      COVERAGE_LIBS=""
  76    fi
  77 fi
  78
  79 AC_SUBST([GCOV])
  80 AC_SUBST([LCOV])
  81 AC_SUBST([GENHTML])
  82 AC_SUBST([GENHTML_OPTIONS])
  83 AC_SUBST([COVERAGE_CFLAGS])
  84 AC_SUBST([COVERAGE_OPTFLAGS])
  85 AC_SUBST([COVERAGE_LDFLAGS])
  86 AC_SUBST([COVERAGE_LIBS])
  87 AM_CONDITIONAL(CODE_COVERAGE_ENABLED,test x$HAVE_GCOV_TOOLS = x1)
  88
  89 ])