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Stopped GCC warning about unused variables

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We detect real unused variables from the occam program ourselves, but we don't want GCC warnings for all the unused _sizes variables and so on
This commit is contained in:
Neil Brown 2009-01-27 12:56:32 +00:00
parent d1e0ec07c4
commit addcefdab2
1 changed files with 11 additions and 1 deletions
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12
configure.ac
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@ -147,6 +147,16 @@ AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[ ]]),
no_tree_vrp=
)
#Check whether GCC accepts the -Wno-unused-parameter -Wno-unused-variable flags:
AC_MSG_CHECKING([whether -Wno-unused-parameter and -Wno-unused-variable flags are accepted])
CFLAGS="-Wno-unused-parameter -Wno-unused-variable"
AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[ ]]),
AC_MSG_RESULT([yes])
no_unused="-Wno-unused-parameter -Wno-unused-variable"
,
AC_MSG_RESULT([no])
no_unused=
)
CFLAGS="$old_CFLAGS"
@ -226,7 +236,7 @@ CFLAGS="$CFLAGS $no_strict_overflow $no_tree_vrp"
# that, but I'm also leaving these flags in so that any other code (for example,
# that Tock might spit out) that uses increments doesn't have the same issue.
common_cflags="-Wall -ggdb3 -Isupport $no_strict_aliasing"
common_cflags="-Wall $no_unused -ggdb3 -Isupport $no_strict_aliasing"
TOCK_CFLAGS="$gnu89_inline $CPPFLAGS $CFLAGS $common_cflags $CCSP_CFLAGS $GLIB_CFLAGS"
TOCK_CLDFLAGS="$LDFLAGS $CCSP_LIBS $GLIB_LIBS"