mirror of https://github.com/xzeldon/htop.git
Add some default compiler warnings
Compatible with gcc and clang.
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parent
dd6500c7c7
commit
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@ -10,7 +10,7 @@ applications_DATA = htop.desktop
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pixmapdir = $(datadir)/pixmaps
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pixmap_DATA = htop.png
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AM_CFLAGS += -pedantic -Wall $(wextra_flag) -std=c99 -D_XOPEN_SOURCE_EXTENDED -DSYSCONFDIR=\"$(sysconfdir)\" -I"$(top_srcdir)/$(my_htop_platform)"
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AM_CFLAGS += -pedantic -std=c99 -D_XOPEN_SOURCE_EXTENDED -DSYSCONFDIR=\"$(sysconfdir)\" -I"$(top_srcdir)/$(my_htop_platform)"
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AM_LDFLAGS =
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AM_CPPFLAGS = -DNDEBUG
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30
configure.ac
30
configure.ac
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@ -85,26 +85,13 @@ AC_CHECK_FUNCS([memmove strncasecmp strstr strdup])
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save_cflags="${CFLAGS}"
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CFLAGS="${CFLAGS} -std=c99"
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AC_MSG_CHECKING([whether gcc -std=c99 option works])
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AC_MSG_CHECKING([whether cc -std=c99 option works])
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
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[AC_INCLUDES_DEFAULT], [[char *a; a = strdup("foo"); int i = 0; i++; // C99]])],
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[AC_MSG_RESULT([yes])],
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[AC_MSG_ERROR([htop is written in C99. A newer version of gcc is required.])])
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[AC_MSG_ERROR([htop is written in C99. A newer compiler is required.])])
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CFLAGS="$save_cflags"
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save_cflags="${CFLAGS}"
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CFLAGS="$CFLAGS -Wextra"
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AC_MSG_CHECKING([if compiler supports -Wextra])
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])],[
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wextra_flag=-Wextra
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AC_MSG_RESULT([yes])
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],[
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wextra_flag=
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AC_MSG_RESULT([no])
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])
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CFLAGS="$save_cflags"
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AC_SUBST(wextra_flag)
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# Checks for features and flags.
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# ----------------------------------------------------------------------
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PROCDIR=/proc
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@ -279,6 +266,19 @@ then
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])
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fi
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AM_CFLAGS="\
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-Wall\
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-Wcast-align\
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-Wextra\
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-Wmissing-format-attribute\
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-Wmissing-noreturn\
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-Wpointer-arith\
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-Wshadow\
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-Wstrict-prototypes\
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-Wundef\
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-Wunused\
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-Wwrite-strings"
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AC_ARG_ENABLE([werror], [AS_HELP_STRING([--enable-werror], [Treat warnings as errors (default: warnings are not errors)])], [enable_werror="$enableval"], [enable_werror=no])
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AS_IF([test "x$enable_werror" = "xyes"], [AM_CFLAGS="$AM_CFLAGS -Werror"])
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AC_SUBST([AM_CFLAGS])
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