Package: libmozjs-dev Version: 1.8.1.14-3 Severity: normal File: /usr/lib/pkgconfig/xulrunner-js.pc
/usr/include/mozjs/jsapi.h contains #ifdefs that change the size of struct JSFunctionSpec depending on whether MOZILLA_1_8_BRANCH is defined. The xulrunner source package defines this macro in configure.in. However, when an application is built to use mozjs, it seems none of the files in the libmozjs-dev package gives the application any hint on whether it too should define MOZILLA_1_8_BRANCH; grepping through all files in the package shows this macro only in the #ifdefs themselves. If the application does not define this macro, it gets a definition of JSFunctionSpec that does not match the compiled library. Because JS_DefineFunctions() takes an array of JSFunctionSpec as the last parameter and finds its elements by pointer arithmetic, this function is then likely to locate only the first element correctly. This actually happened to me with the upstream ELinks sources. There was no crash but JS_DefineFunctions() just failed to define the second of two functions. Please change the libmozjs-dev package so that applications can find out which preprocessor macros they need to define in order to get definitions that are compatible with the installed library. In xulrunner 1.8, I suggest adding a #define MOZILLA_1_8_BRANCH in jsconfig.h, or alternatively to xulrunner-js.pc. (ELinks does not currently call pkg-config for mozjs but I can change that if necessary.) In xulrunner 1.9, I guess the incompatibility has already disappeared; however, I ask you to keep this bug in mind in case new #ifdefs are ever added to the structure definitions. -- System Information: Debian Release: lenny/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.24-1-686 Locale: LANG=fi_FI.UTF-8, LC_CTYPE=fi_FI.UTF-8 (charmap=UTF-8) Versions of packages libmozjs-dev depends on: ii libmozjs0d 1.8.1.14-3 The Mozilla SpiderMonkey JavaScrip ii libnspr4-dev 4.6.7-1 Development files for the NetScape libmozjs-dev recommends no packages. -- no debconf information
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