{"id":59,"date":"2010-12-09T19:58:44","date_gmt":"2010-12-09T19:58:44","guid":{"rendered":"http:\/\/notsolazymoms.com\/blog\/2010\/12\/09\/building-libcurl-ios-42\/"},"modified":"2010-12-09T19:58:44","modified_gmt":"2010-12-09T19:58:44","slug":"building-libcurl-ios-42","status":"publish","type":"post","link":"https:\/\/creativealgorithms.com\/blog\/content\/building-libcurl-ios-42\/","title":{"rendered":"Building libCURL for iOS 4.2"},"content":{"rendered":"

I recently had to rebuild libCURL for iOS4.2 because I was getting crashes in the simulator related to libCURL which were not present in iOS4.1:
\n
\nDetected an attempt to call a symbol in system libraries that is not present on the iPhone:
\nclose$UNIX2003 called from function Curl_getaddrinfo in image TripBoss.
\nIf you are encountering this problem running a simulator binary within gdb, make sure you 'set start-with-shell off' first.
\nProgram received signal: \u201cSIGABRT\u201d.
\n<\/code><\/p>\n


\nI recently had to rebuild libCURL for iOS4.2 because I was getting crashes in the simulator related to libCURL which were not present in iOS4.1:
\n
\nDetected an attempt to call a symbol in system libraries that is not present on the iPhone:
\nclose$UNIX2003 called from function Curl_getaddrinfo in image TripBoss.
\nIf you are encountering this problem running a simulator binary within gdb, make sure you 'set start-with-shell off' first.
\nProgram received signal: \u201cSIGABRT\u201d.
\n<\/code><\/p>\n

Unfortunately, adding “set start-with-shell 0” to ~\/.gdbinit did not rectify the problem and as this<\/a> forum post eludes to, the library needed to be rebuild without the $UNIX2003 symbol decoration.<\/p>\n

So, here is the procedure I am using to build libCURL without SSL (since SSL may require export restrictions). Thanks to Silviu Caragea<\/a> and Sam le Pirate<\/a> for leading the way.<\/p>\n

Download CURL source from: http:\/\/curl.haxx.se\/download.html
\n
\ntar -xvzf curl-7.21.2.tar.gz
\ncd curl-7.21.2
\nexport CC=\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/usr\/bin\/arm-apple-darwin10-gcc-4.0.1
\nexport CFLAGS=\"-isysroot \/Developer\/Platforms\/iPhoneOS.platform\/Developer\/SDKs\/iPhoneOS4.2.sdk\"
\nexport LDFLAGS=\"-isysroot \/Developer\/Platforms\/iPhoneOS.platform\/Developer\/SDKs\/iPhoneOS4.2.sdk -Wl,-syslibroot \/Developer\/Platforms\/iPhoneOS.platform\/Developer\/SDKs\/iPhoneOS4.2.sdk\"
\nexport CPP=\/Developer\/Platforms\/iPhoneOS.platform\/Developer\/usr\/bin\/cpp
\n.\/configure --disable-shared --without-ssl --without-libssh2 --without-ca-bundle --without-ldap --disable-ldap --host=arm-apple-darwin10
\n<\/code>
\nBy configuring with isysroot and syslibroot set the correct SDK, the CURL_SIZEOF_LONG and SIZEOF_LONG will get set to the correct value (4).<\/p>\n

In Xcode, choose File->New Project->iOS->Library->Cocoa Touch Static Library.
\nAdd->Existing Files (select curl’s “src” folder)
\nAdd->Existing Files (select curl’s “lib” folder)
\nRemove “src\/macos” folder from project. (Delete->Delete references)
\nUnselect Makefile and Makefile.inc checkboxes for target.<\/p>\n

In \u201cBuild\u201d tab search for OTHER_CFLAGS and add the following options:
\n
\n\t-DHAVE_CONFIG_H -I\/ca\/dev\/code\/lib\/curl\/curl-latest\/include -I\/ca\/dev\/code\/lib\/curl\/curl-latest\/lib
\n<\/code>
\nReplace \/ca\/dev\/code\/lib\/curl\/curl-latest with the path at which you untarred the CURL source.
\nBuild both Simulator\/Release and Device\/Release.<\/p>\n

To make a universal library for both the simulator and the device, execute lipo from the command line of the Xcode project folder:
\n
\nlipo -create build\/Release-iphonesimulator\/libcurl.a build\/Release-iphoneos\/libcurl.a -output libcurl.a
\n<\/code><\/p>\n

The last step is to add libCURL to your app by right-clicking (or option-clicking) Frameworks->Add->Add Existing Frameworks…->Other and choosing the libCURL.a file created by lipo.<\/p>\n","protected":false},"excerpt":{"rendered":"

I recently had to rebuild libCURL for iOS4.2 because I was getting crashes in the simulator related to libCURL which were not present in iOS4.1: Detected an attempt to call a symbol in system libraries that is not present on the iPhone: close$UNIX2003 called from function Curl_getaddrinfo in image TripBoss. If you are encountering this...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[83],"class_list":["post-59","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-iphone-ipad-curl-networking-static-library-xcode"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/creativealgorithms.com\/blog\/wp-json\/wp\/v2\/posts\/59","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/creativealgorithms.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/creativealgorithms.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/creativealgorithms.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/creativealgorithms.com\/blog\/wp-json\/wp\/v2\/comments?post=59"}],"version-history":[{"count":0,"href":"https:\/\/creativealgorithms.com\/blog\/wp-json\/wp\/v2\/posts\/59\/revisions"}],"wp:attachment":[{"href":"https:\/\/creativealgorithms.com\/blog\/wp-json\/wp\/v2\/media?parent=59"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/creativealgorithms.com\/blog\/wp-json\/wp\/v2\/categories?post=59"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/creativealgorithms.com\/blog\/wp-json\/wp\/v2\/tags?post=59"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}