Resolving dependencies... Configuring mtl-2.2.1... Configuring text-1.2.2.1... Building mtl-2.2.1... Building text-1.2.2.1... Installed mtl-2.2.1 Configuring epic-0.9.3.3... Building epic-0.9.3.3... Installed text-1.2.2.1 Configuring parsec-3.1.11... Building parsec-3.1.11... Failed to install epic-0.9.3.3 Build log ( /home/builder/.cabal/logs/epic-0.9.3.3.log ): cabal: Entering directory '/tmp/cabal-tmp-32401/epic-0.9.3.3' [1 of 1] Compiling Main ( /tmp/cabal-tmp-32401/epic-0.9.3.3/dist/setup/setup.hs, /tmp/cabal-tmp-32401/epic-0.9.3.3/dist/setup/Main.o ) Linking /tmp/cabal-tmp-32401/epic-0.9.3.3/dist/setup/setup ... Configuring epic-0.9.3.3... make: Entering directory `/tmp/cabal-tmp-32401/epic-0.9.3.3/evm' rm -f closure.o stdfuns.o emalloc.o sparks.o libevm.a make: Leaving directory `/tmp/cabal-tmp-32401/epic-0.9.3.3/evm' Building epic-0.9.3.3... Preprocessing library epic-0.9.3.3... unused rules: 1 [ 1 of 14] Compiling Paths_epic ( dist/build/autogen/Paths_epic.hs, dist/build/Paths_epic.o ) [ 2 of 14] Compiling Epic.Language ( Epic/Language.lhs, dist/build/Epic/Language.o ) [ 3 of 14] Compiling Epic.Lexer ( Epic/Lexer.lhs, dist/build/Epic/Lexer.o ) [ 4 of 14] Compiling Epic.OTTLang ( Epic/OTTLang.lhs, dist/build/Epic/OTTLang.o ) [ 5 of 14] Compiling Epic.Parser ( dist/build/Epic/Parser.hs, dist/build/Epic/Parser.o ) [ 6 of 14] Compiling Epic.Scopecheck ( Epic/Scopecheck.lhs, dist/build/Epic/Scopecheck.o ) [ 7 of 14] Compiling Epic.Simplify ( Epic/Simplify.lhs, dist/build/Epic/Simplify.o ) [ 8 of 14] Compiling Epic.Stackcode ( Epic/Stackcode.lhs, dist/build/Epic/Stackcode.o ) [ 9 of 14] Compiling Epic.Evaluator ( Epic/Evaluator.lhs, dist/build/Epic/Evaluator.o ) [10 of 14] Compiling Epic.CodegenStack ( Epic/CodegenStack.lhs, dist/build/Epic/CodegenStack.o ) [11 of 14] Compiling Epic.Bytecode ( Epic/Bytecode.lhs, dist/build/Epic/Bytecode.o ) [12 of 14] Compiling Epic.CodegenC ( Epic/CodegenC.lhs, dist/build/Epic/CodegenC.o ) [13 of 14] Compiling Epic.Compiler ( Epic/Compiler.lhs, dist/build/Epic/Compiler.o ) [14 of 14] Compiling Epic.Epic ( Epic/Epic.lhs, dist/build/Epic/Epic.o ) Preprocessing executable 'epic' for epic-0.9.3.3... [ 1 of 10] Compiling Paths_epic ( dist/build/autogen/Paths_epic.hs, dist/build/epic/epic-tmp/Paths_epic.o ) [ 2 of 10] Compiling Epic.Language ( Epic/Language.lhs, dist/build/epic/epic-tmp/Epic/Language.o ) [ 3 of 10] Compiling Epic.Lexer ( Epic/Lexer.lhs, dist/build/epic/epic-tmp/Epic/Lexer.o ) [ 4 of 10] Compiling Epic.Parser ( dist/build/epic/epic-tmp/Epic/Parser.hs, dist/build/epic/epic-tmp/Epic/Parser.o ) [ 5 of 10] Compiling Epic.Scopecheck ( Epic/Scopecheck.lhs, dist/build/epic/epic-tmp/Epic/Scopecheck.o ) [ 6 of 10] Compiling Epic.Simplify ( Epic/Simplify.lhs, dist/build/epic/epic-tmp/Epic/Simplify.o ) [ 7 of 10] Compiling Epic.Bytecode ( Epic/Bytecode.lhs, dist/build/epic/epic-tmp/Epic/Bytecode.o ) [ 8 of 10] Compiling Epic.CodegenC ( Epic/CodegenC.lhs, dist/build/epic/epic-tmp/Epic/CodegenC.o ) [ 9 of 10] Compiling Epic.Compiler ( Epic/Compiler.lhs, dist/build/epic/epic-tmp/Epic/Compiler.o ) [10 of 10] Compiling Main ( Main.lhs, dist/build/epic/epic-tmp/Main.o ) Linking dist/build/epic/epic ... make: Entering directory `/tmp/cabal-tmp-32401/epic-0.9.3.3/evm' gcc -Wall -O3 -DUSE_BOEHM -c -o closure.o closure.c In file included from closure.h:4:0, from closure.c:1: gc_header.h:10:19: fatal error: gc/gc.h: No such file or directory #include ^ compilation terminated. make: *** [closure.o] Error 1 make: Leaving directory `/tmp/cabal-tmp-32401/epic-0.9.3.3/evm' cabal: Leaving directory '/tmp/cabal-tmp-32401/epic-0.9.3.3' Installed parsec-3.1.11 cabal: Error: some packages failed to install: epic-0.9.3.3 failed during the building phase. The exception was: ExitFailure 2 idris-0.9.0 depends on epic-0.9.3.3 which failed to install.