1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
AC_PREREQ(2.54)
m4_define(memfault_version_major, 0)
m4_define(memfault_version_minor, 0)
m4_define(memfault_version_micro, 1)
AC_INIT([memfault],
memfault_version_major.memfault_version_minor.memfault_version_micro,
[chris@chris-wilson.co.uk])
AM_INIT_AUTOMAKE([1.9])
AC_PROG_CC
AC_PROG_CC_C_O
dnl check compiler flags
AC_DEFUN([MEMFAULT_CC_TRY_FLAG], [
AC_MSG_CHECKING([whether $CC supports $1])
memfault_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $1"
AC_COMPILE_IFELSE([ ], [memfault_cc_flag=yes], [memfault_cc_flag=no])
CFLAGS="$memfault_save_CFLAGS"
if test "x$memfault_cc_flag" = "xyes"; then
ifelse([$2], , :, [$2])
else
ifelse([$3], , :, [$3])
fi
AC_MSG_RESULT([$memfault_cc_flag])
])
dnl Use lots of warning flags with with gcc and compatible compilers
dnl Note: if you change the following variable, the cache is automatically
dnl skipped and all flags rechecked. So there's no need to do anything
dnl else. If for any reason you need to force a recheck, just change
dnl MAYBE_WARN in an ignorable way (like adding whitespace)
MAYBE_WARN="-Wall -Wextra \
-Wsign-compare -Werror-implicit-function-declaration \
-Wpointer-arith -Wwrite-strings -Wstrict-prototypes \
-Wmissing-prototypes -Wmissing-declarations -Wnested-externs \
-Wpacked -Wswitch-enum -Wmissing-format-attribute \
-Wstrict-aliasing=2 -Winit-self -Wunsafe-loop-optimizations \
-Wdeclaration-after-statement -Wold-style-definition \
-Wno-missing-field-initializers -Wno-unused-parameter \
-Wno-attributes -Wno-long-long -Winline"
# invalidate cached value if MAYBE_WARN has changed
if test "x$memfault_cv_warn_maybe" != "x$MAYBE_WARN"; then
unset memfault_cv_warn_cflags
fi
AC_CACHE_CHECK([for supported warning flags], memfault_cv_warn_cflags, [
echo
WARN_CFLAGS=""
# Some warning options are not supported by all versions of
# gcc, so test all desired options against the current
# compiler.
#
# Note that there are some order dependencies
# here. Specifically, an option that disables a warning will
# have no net effect if a later option then enables that
# warnings, (perhaps implicitly). So we put some grouped
# options (-Wall and -Wextra) up front and the -Wno options
# last.
for W in $MAYBE_WARN; do
MEMFAULT_CC_TRY_FLAG([$W], [WARN_CFLAGS="$WARN_CFLAGS $W"])
done
memfault_cv_warn_cflags=$WARN_CFLAGS
memfault_cv_warn_maybe=$MAYBE_WARN
AC_MSG_CHECKING([which warning flags were supported])])
WARN_CFLAGS="$memfault_cv_warn_cflags"
MEMFAULT_CFLAGS="$MEMFAULT_CFLAGS $WARN_CFLAGS -ggdb3 -O0"
AC_SUBST([WARN_CFLAGS MEMFAULT_CFLAGS])
PKG_CHECK_MODULES(gtk, [gtk+-2.0 >= 2.12.0 gnet-2.0 libgtop-2.0])
AC_SUBST([gtk_CFLAGS gtk_LIBS])
AC_CONFIG_FILES([
Makefile
])
AC_OUTPUT
|
