1#*************************************************************************** 2# _ _ ____ _ 3# Project ___| | | | _ \| | 4# / __| | | | |_) | | 5# | (__| |_| | _ <| |___ 6# \___|\___/|_| \_\_____| 7# 8# Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. 9# 10# This software is licensed as described in the file COPYING, which 11# you should have received as part of this distribution. The terms 12# are also available at https://curl.se/docs/copyright.html. 13# 14# You may opt to use, copy, modify, merge, publish, distribute and/or sell 15# copies of the Software, and permit persons to whom the Software is 16# furnished to do so, under the terms of the COPYING file. 17# 18# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19# KIND, either express or implied. 20# 21########################################################################### 22# Google Android makefile for curl and libcurl 23# 24# This file can be used when building curl using the full Android source 25# release or the NDK. Most users do not want or need to do this; please 26# instead read the Android section in docs/INSTALL for alternate 27# methods. 28# 29# Place the curl source (including this makefile) into external/curl/ in the 30# Android source tree. Then build them with 'make curl' or just 'make libcurl' 31# from the Android root. Tested with Android versions 1.5, 2.1-2.3 32# 33# Note: you must first create a curl_config.h file by running configure in the 34# Android environment. The only way I've found to do this is tricky. Perform a 35# normal Android build with libcurl in the source tree, providing the target 36# "showcommands" to make. The build will eventually fail (because curl_config.h 37# doesn't exist yet), but the compiler commands used to build curl will be 38# shown. Now, from the external/curl/ directory, run curl's normal configure 39# command with flags that match what Android itself uses. This will mean 40# putting the compiler directory into the PATH, putting the -I, -isystem and 41# -D options into CPPFLAGS, putting the -W, -m, -f, -O and -nostdlib options 42# into CFLAGS, and putting the -Wl, -L and -l options into LIBS, along with the 43# path to the files libgcc.a, crtbegin_dynamic.o, and ccrtend_android.o. 44# Remember that the paths must be absolute since you will not be running 45# configure from the same directory as the Android make. The normal 46# cross-compiler options must also be set. Note that the -c, -o, -MD and 47# similar flags must not be set. 48# 49# To see all the LIBS options, you'll need to do the "showcommands" trick on an 50# executable that's already buildable and watch what flags Android uses to link 51# it (dhcpcd is a good choice to watch). You'll also want to add -L options to 52# LIBS that point to the out/.../obj/lib/ and out/.../obj/system/lib/ 53# directories so that additional libraries can be found and used by curl. 54# 55# The end result will be a configure command that looks something like this 56# (the environment variable A is set to the Android root path which makes the 57# command shorter): 58# 59# A=`realpath ../..` && \ 60# PATH="$A/prebuilt/linux-x86/toolchain/arm-eabi-X/bin:$PATH" \ 61# ./configure --host=arm-linux CC=arm-eabi-gcc \ 62# CPPFLAGS="-I $A/system/core/include ..." \ 63# CFLAGS="-nostdlib -fno-exceptions -Wno-multichar ..." \ 64# LIBS="$A/prebuilt/linux-x86/toolchain/arm-eabi-X/lib/gcc/arm-eabi/X\ 65# /interwork/libgcc.a ..." 66# 67# Finally, copy the file COPYING to NOTICE so that the curl license gets put 68# into the right place (but see the note about this below). 69# 70# Dan Fandrich 71# November 2011 72 73LOCAL_PATH:= $(call my-dir)/../.. 74 75common_CFLAGS := -Wpointer-arith -Wwrite-strings -Wunused -Winline -Wnested-externs -Wmissing-declarations -Wmissing-prototypes -Wno-long-long -Wfloat-equal -Wno-multichar -Wsign-compare -Wno-format-nonliteral -Wendif-labels -Wstrict-prototypes -Wdeclaration-after-statement -Wno-system-headers -DHAVE_CONFIG_H 76 77######################### 78# Build the libcurl library 79 80include $(CLEAR_VARS) 81include $(LOCAL_PATH)/lib/Makefile.inc 82CURL_HEADERS := \ 83 curl.h \ 84 system.h \ 85 curlver.h \ 86 easy.h \ 87 mprintf.h \ 88 multi.h \ 89 stdcheaders.h \ 90 typecheck-gcc.h 91 92LOCAL_SRC_FILES := $(addprefix lib/,$(CSOURCES)) 93LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/ 94LOCAL_CFLAGS += $(common_CFLAGS) 95 96LOCAL_COPY_HEADERS_TO := libcurl/curl 97LOCAL_COPY_HEADERS := $(addprefix include/curl/,$(CURL_HEADERS)) 98 99LOCAL_MODULE:= libcurl 100LOCAL_MODULE_TAGS := optional 101 102# Copy the licence to a place where Android will find it. 103# Actually, this doesn't quite work because the build system searches 104# for NOTICE files before it gets to this point, so it will only be seen 105# on subsequent builds. 106ALL_PREBUILT += $(LOCAL_PATH)/NOTICE 107$(LOCAL_PATH)/NOTICE: $(LOCAL_PATH)/COPYING | $(ACP) 108 $(copy-file-to-target) 109 110include $(BUILD_STATIC_LIBRARY) 111 112 113######################### 114# Build the curl binary 115 116include $(CLEAR_VARS) 117include $(LOCAL_PATH)/src/Makefile.inc 118LOCAL_SRC_FILES := $(addprefix src/,$(CURL_CFILES)) 119 120LOCAL_MODULE := curl 121LOCAL_MODULE_TAGS := optional 122LOCAL_STATIC_LIBRARIES := libcurl 123LOCAL_SYSTEM_SHARED_LIBRARIES := libc 124 125LOCAL_C_INCLUDES += $(LOCAL_PATH)/include $(LOCAL_PATH)/lib 126 127# This may also need to include $(CURLX_CFILES) in order to correctly link 128# if libcurl is changed to be built as a dynamic library 129LOCAL_CFLAGS += $(common_CFLAGS) 130 131include $(BUILD_EXECUTABLE) 132