I m trying to change the make install action of the open source json-c.
I tried to check the configure.ac and the makefile.am. But it's not clear for me how these files build the make install action.
Here after the configuer.ac and makefile.am
configure.ac
AC_PREREQ(2.52)
# Process this file with autoconf to produce a configure script.
AC_INIT([json-c], 0.12.99, [json-c@googlegroups.com])
AM_INIT_AUTOMAKE
AC_PROG_MAKE_SET
AC_ARG_ENABLE(rdrand,
AS_HELP_STRING([--enable-rdrand],
[Enable RDRAND Hardware RNG Hash Seed generation on supported x86/x64 platforms.]),
[if test x$enableval = xyes; then
enable_rdrand=yes
AC_DEFINE(ENABLE_RDRAND, 1, [Enable RDRANR Hardware RNG Hash Seed])
fi])
if test "x$enable_rdrand" = "xyes"; then
AC_MSG_RESULT([RDRAND Hardware RNG Hash Seed enabled on supported x86/x64 platforms])
else
AC_MSG_RESULT([RDRAND Hardware RNG Hash Seed disabled. Use --enable-rdrand to enable])
fi
# enable silent build by default
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
# Checks for programs.
# Checks for libraries.
# Checks for header files.
AM_PROG_CC_C_O
AC_CONFIG_HEADER(config.h)
AC_CONFIG_HEADER(json_config.h)
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h limits.h strings.h syslog.h unistd.h [sys/cdefs.h] [sys/param.h] stdarg.h locale.h endian.h)
AC_CHECK_HEADER(inttypes.h,[AC_DEFINE([JSON_C_HAVE_INTTYPES_H],[1],[Public define for json_inttypes.h])])
# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_SIZE_T
# Checks for library functions.
AC_FUNC_VPRINTF
AC_FUNC_MEMCMP
AC_FUNC_REALLOC
AC_CHECK_FUNCS(strcasecmp strdup strerror snprintf vsnprintf vasprintf open vsyslog strncasecmp setlocale)
AC_CHECK_DECLS([INFINITY], [], [], [[#include <math.h>]])
AC_CHECK_DECLS([nan], [], [], [[#include <math.h>]])
AC_CHECK_DECLS([isnan], [], [], [[#include <math.h>]])
AC_CHECK_DECLS([isinf], [], [], [[#include <math.h>]])
AC_CHECK_DECLS([_isnan], [], [], [[#include <float.h>]])
AC_CHECK_DECLS([_finite], [], [], [[#include <float.h>]])
if test "$ac_cv_have_decl_isnan" = "yes" ; then
AC_TRY_LINK([#include <math.h>], [float f = 0.0; return isnan(f)], [], [LIBS="$LIBS -lm"])
fi
#check if .section.gnu.warning accepts long strings (for __warn_references)
AC_LANG_PUSH([C])
AC_MSG_CHECKING([if .gnu.warning accepts long strings])
AC_LINK_IFELSE([AC_LANG_SOURCE([[
extern void json_object_get();
__asm__(".section .gnu.json_object_get,\n\t.ascii \"Please link against libjson-c instead of libjson\"\n\t.text");
int main(int c,char* v) {return 0;}
]])], [
AC_DEFINE(HAS_GNU_WARNING_LONG, 1, [Define if .gnu.warning accepts long strings.])
AC_MSG_RESULT(yes)
], [
AC_MSG_RESULT(no)
])
AC_LANG_POP([C])
AM_PROG_LIBTOOL
# Check for the -Bsymbolic-functions linker flag
AC_ARG_ENABLE([Bsymbolic],
[AS_HELP_STRING([--disable-Bsymbolic], [Avoid linking with -Bsymbolic-function])],
[],
[enable_Bsymbolic=check])
AS_IF([test "x$enable_Bsymbolic" = "xcheck"],
[
saved_LDFLAGS="${LDFLAGS}"
AC_MSG_CHECKING([for -Bsymbolic-functions linker flag])
LDFLAGS=-Wl,-Bsymbolic-functions
AC_TRY_LINK([], [int main (void) { return 0; }],
[
AC_MSG_RESULT([yes])
enable_Bsymbolic=yes
],
[
AC_MSG_RESULT([no])
enable_Bsymbolic=no
])
LDFLAGS="${saved_LDFLAGS}"
])
AS_IF([test "x$enable_Bsymbolic" = "xyes"], [JSON_BSYMBOLIC_LDFLAGS=-Wl[,]-Bsymbolic-functions])
AC_SUBST(JSON_BSYMBOLIC_LDFLAGS)
AX_APPEND_COMPILE_FLAGS([-Wall -Werror -Wno-error=deprecated-declarations])
AX_APPEND_COMPILE_FLAGS([-Wextra -Wwrite-string -Wno-unused-parameter])
AX_APPEND_COMPILE_FLAGS([-std=gnu99])
AX_APPEND_COMPILE_FLAGS([-D_GNU_SOURCE -D_REENTRANT])
AC_CONFIG_FILES([
Makefile
json-c.pc
tests/Makefile
json-c-uninstalled.pc
])
AC_OUTPUT
makefile.am
EXTRA_DIST = README.html README-WIN32.html config.h.win32 doc json-c.vcproj
SUBDIRS = . tests
lib_LTLIBRARIES = libjson-c.la
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = json-c.pc
libjson_cincludedir = $(includedir)/json-c
libjson_cinclude_HEADERS = \
arraylist.h \
bits.h \
debug.h \
json.h \
json_config.h \
json_c_version.h \
json_inttypes.h \
json_object.h \
json_object_iterator.h \
json_object_private.h \
json_tokener.h \
json_util.h \
linkhash.h \
printbuf.h \
random_seed.h
#libjsonx_includedir = $(libdir)/json-c-@VERSION@
#
#libjsonx_include_HEADERS = \
# json_config.h
libjson_c_la_LDFLAGS = -version-info 3:0:0 -no-undefined @JSON_BSYMBOLIC_LDFLAGS@
libjson_c_la_SOURCES = \
arraylist.c \
debug.c \
json_c_version.c \
json_object.c \
json_object_iterator.c \
json_tokener.c \
json_util.c \
linkhash.c \
printbuf.c \
random_seed.c
distclean-local:
-rm -rf $(testsubdir)
-rm -rf config.h.in~ Makefile.in aclocal.m4 autom4te.cache/ config.guess config.sub depcomp install-sh ltmain.sh missing
-rm -f INSTALL test-driver tests/Makefile.in compile
maintainer-clean-local:
-rm -rf configure
uninstall-local:
rm -rf "$(DESTDIR)@includedir@/json-c"
rm -f "$(DESTDIR)@includedir@/json"
ANDROID_CFLAGS = -I$(top_srcdir) -DHAVE_CONFIG_H
Android.mk: Makefile.am
androgenizer -:PROJECT json-c \
-:SHARED libjson-c \
-:TAGS eng debug \
-:REL_TOP $(top_srcdir) -:ABS_TOP $(abs_top_srcdir) \
-:SOURCES $(libjson_c_la_SOURCES) $(nodist_libjson_c_la_SOURCES) \
-:CFLAGS $(DEFS) $(ANDROID_CFLAGS) $(libjson_c_la_CFLAGS) \
-:LDFLAGS $(libjson_c_la_LDFLAGS) $(libjson_c_la_LIBADD) \
-:HEADER_TARGET json-c \
-:HEADERS $(libjson_cinclude_HEADERS) \
-:PASSTHROUGH LOCAL_ARM_MODE:=arm \
> $@
Coul you help me by indicating the parts that build the make install
答案 0 :(得分：1)
Automake决定如何安装东西的主要方式是通过“初选”的前缀。
在上面的示例中，这些是lib_LTLIBRARIES，表示“libdir中安装的库”;和pkgconfig_DATA，表示“pkgconfigdir中安装的数据文件” - pkgconfigdir本身在Makefile.am中定义。 （第二个显示如何扩展此类前缀的列表。）
你也可以通过编写明确的规则来安装东西，虽然上面的方法确实是优越的 - 安装规则有一些微妙之处，比如DESTDIR支持，手写规则经常出错。
对于它的价值，有一整章关于Automake手册中的install过程。我建议至少略读整本手册。