projects / thirdparty / bash.git / blame
| Commit | Line | Data |
|---|---|---|
| 726f6388 JA |
1 | #! /bin/sh |
| 2 | CC=cc | |
| 3 | export CC | |
| 4 | ||
| 5 | cat > x.c << EOF | |
| 6 | /* | |
| 7 | * exit 0 if we have the getgroups system or library call. | |
| 8 | */ | |
| 9 | ||
| 10 | main() | |
| 11 | { | |
| 12 | int g[100], ng; | |
| 13 | ||
| 14 | ng = getgroups(100, g); | |
| 15 | if (ng) | |
| 16 | exit(0); | |
| 17 | exit(1); | |
| 18 | } | |
| 19 | EOF | |
| 20 | if ${CC} x.c > /dev/null 2>&1 && ./a.out ; then | |
| 21 | echo '#define HAVE_GETGROUPS' | |
| 22 | fi | |
| 23 | rm -f x.c x.o a.out | |
| 24 | ||
| 25 | cat > x.c << EOF | |
| 26 | extern int dup2(); | |
| 27 | main() | |
| 28 | { | |
| 29 | exit(dup2(1, 2) == -1); | |
| 30 | } | |
| 31 | EOF | |
| 32 | ||
| 33 | if ${CC} x.c > /dev/null 2>&1 && ./a.out ; then | |
| 34 | echo '#define HAVE_DUP2' | |
| 35 | fi | |
| 36 | rm -f a.out x.c x.o | |
| 37 | ||
| 38 | cat > x.c << EOF | |
| 39 | extern int getpageesize(); | |
| 40 | main() | |
| 41 | { | |
| 42 | int n = getpagesize(); | |
| 43 | } | |
| 44 | EOF | |
| 45 | ||
| 46 | if ${CC} x.c > /dev/null 2>&1 | |
| 47 | then | |
| 48 | echo '#define HAVE_GETPAGESIZE' | |
| 49 | fi | |
| 50 | rm -f a.out x.c x.o | |
| 51 | ||
| 52 | cat > x.c << EOF | |
| 53 | extern int getdtablesize(); | |
| 54 | main() | |
| 55 | { | |
| 56 | int n = getdtablesize(); | |
| 57 | } | |
| 58 | EOF | |
| 59 | ||
| 60 | if ${CC} x.c > /dev/null 2>&1 | |
| 61 | then | |
| 62 | echo '#define HAVE_GETDTABLESIZE' | |
| 63 | fi | |
| 64 | rm -f a.out x.c x.o | |
| 65 | ||
| 66 | cat > x.c << EOF | |
| 67 | extern int setdtablesize(); | |
| 68 | main() | |
| 69 | { | |
| 70 | int n = setdtablesize(128); | |
| 71 | } | |
| 72 | EOF | |
| 73 | ||
| 74 | if ${CC} x.c > /dev/null 2>&1 | |
| 75 | then | |
| 76 | echo '#define HAVE_SETDTABLESIZE' | |
| 77 | fi | |
| 78 | rm -f a.out x.c x.o | |
| 79 | ||
| 80 | exit 0 |