unix4lyfe git - darkstat/blob - test_headers.sh

   1 #!/bin/sh
   2 # copyright (c) 2011 Emil Mikulic.
   3 #
   4 # The rule is that every header has to bring in all of its dependencies.
   5 #
   6 # This script tests to make sure it's true: for each header file,
   7 # test-compile a C source file that includes just the header.
   8 #
   9 # Also test that it can be included twice without problems.
  10 #
  11 src=_test_hdr.c
  12 obj=_test_hdr.o
  13
  14 if [ $# -eq 0 ]; then
  15   echo "usage: $0 *.h" >&2
  16   exit 1
  17 fi
  18
  19 for f in $*; do
  20   cat >$src <<EOF
  21 #include "$f"
  22 void test_hdr_do_nothing(void) { }
  23 EOF
  24   if gcc -c $src 2>/dev/null; then
  25     true
  26   else
  27     echo "===> FAIL: $f <==="
  28     gcc -c $src
  29   fi
  30
  31   cat >$src <<EOF
  32 #include "$f"
  33 #include "$f"
  34 void test_hdr_do_nothing(void) { }
  35 EOF
  36   if gcc -c $src 2>/dev/null; then
  37     true
  38   else
  39     echo "===> FAIL DOUBLE: $f <==="
  40     gcc -c $src
  41   fi
  42 done
  43
  44 rm $src $obj