Revert "Try to build just llvm in travis right now"

This reverts commit 0ddbb6b3cd.

.travis.yml

@@ -57,23 +57,23 @@ script:
   # We use "-O0" to speed up the build.
   # "-O0" causes segfaults in LLVM if we do not use "-DNDEBUG" as well.
   - cmake -DCMAKE_CXX_FLAGS_RELEASE="-O0 -DNDEBUG" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="$(pwd)/install" -DRETDEC_TESTS=ON -DRETDEC_DEV_TOOLS=ON -DRETDEC_COMPILE_YARA=OFF ..
-  - time make llvm-project -j $NPROC
+  - time make install -j $NPROC
   # Check that install is movable and that it does not need the build directory.
-  #- mv install ../retdec-install
-  #- cd ..
-  #- rm -rf build
-  ## Run unit tests.
-  #- python3 retdec-install/bin/retdec-tests-runner.py
-  ## Run the decompilation script.
-  #- python3 retdec-install/bin/retdec-decompiler.py --help
-  ## Run a simple decompilation.
-  #- echo -e '#include <stdio.h>\n#include <stdlib.h>\nint main()\n{\n  printf("hello world\\n");\n  return 0;\n}\n' > hello-orig.c
-  #- cat hello-orig.c
-  #- gcc -m32 -o hello hello-orig.c
-  #- ./hello
-  #- python3 retdec-install/bin/retdec-decompiler.py hello
-  #- cat hello.c
-  #- grep "int main(int argc, char \*\* argv)" hello.c
+  - mv install ../retdec-install
+  - cd ..
+  - rm -rf build
+  # Run unit tests.
+  - python3 retdec-install/bin/retdec-tests-runner.py
+  # Run the decompilation script.
+  - python3 retdec-install/bin/retdec-decompiler.py --help
+  # Run a simple decompilation.
+  - echo -e '#include <stdio.h>\n#include <stdlib.h>\nint main()\n{\n  printf("hello world\\n");\n  return 0;\n}\n' > hello-orig.c
+  - cat hello-orig.c
+  - gcc -m32 -o hello hello-orig.c
+  - ./hello
+  - python3 retdec-install/bin/retdec-decompiler.py hello
+  - cat hello.c
+  - grep "int main(int argc, char \*\* argv)" hello.c
 
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