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comparison scripts/genconfig.sh @ 813:52e69f6710ca 0.4.4

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Compile time probe to fish O_NOFOLLOW out of linux headers when fcntl doesn't conform to posix-2008.
author Rob Landley <rob@landley.net>
date Mon, 11 Mar 2013 22:23:46 -0500
parents 68d6c1ce7bba
children a612857eb52d
comparison
equal deleted inserted replaced
812:5a2b83a92521 813:52e69f6710ca
47 47
48 echo endmenu 48 echo endmenu
49 done 49 done
50 } 50 }
51 51
52 headerprobes()
53 {
54 ${CROSS_COMPILE}${CC} -xc -o /dev/null - 2>/dev/null << EOF
55 #include <fcntl.h>
56 #ifndef O_NOFOLLOW
57 #error posix 2008 was a while ago now
58 #endif
59 EOF
60 if [ $? -ne 0 ]
61 then
62 rm -f a.out
63 ${CROSS_COMPILE}${CC} -xc - 2>/dev/null << EOF
64 #include <stdio.h>
65 #include <sys/types.h>
66 #include <asm/fcntl.h>
67
68 int main(int argc, char *argv[])
69 {
70 printf("0x%x\n", O_NOFOLLOW);
71 }
72 EOF
73 X=$(./a.out) 2>/dev/null
74 rm -f a.out
75 echo "#define O_NOFOLLOW ${X:-0}"
76 fi
77 }
78
52 probeconfig > generated/Config.probed || rm generated/Config.probed 79 probeconfig > generated/Config.probed || rm generated/Config.probed
53 genconfig > generated/Config.in || rm generated/Config.in 80 genconfig > generated/Config.in || rm generated/Config.in
81 headerprobes > generated/portability.h || rm generated/portability.h