Fix chapter 3 for PGI testing

Author: robertodr

chapter-03/recipe-04/cxx-example/menu.yml

@@ -6,6 +6,12 @@ appveyor-msys:
   failing_generators:
     - 'Ninja'
 
+# Need to link against libpgftnrtl and librt
+circle-pgi:
+  skip_generators:
+    - 'Unix Makefiles'
+    - 'Ninja'
+
 travis-linux:
   failing_generators:
     - 'Ninja'

chapter-03/recipe-07/cxx-example-3.5/menu.yml

@@ -2,7 +2,11 @@ circle-intel:
   definitions:
     - Eigen3_DIR: '/opt/eigen/share/eigen3/cmake'
 
+# Compiler errors due to some undefined alignment primitive
 circle-pgi:
+  skip_generators:
+    - 'Unix Makefiles'
+    - 'Ninja'
   definitions:
     - Eigen3_DIR: '/opt/eigen/share/eigen3/cmake'
 

chapter-03/recipe-07/cxx-example/menu.yml

@@ -2,7 +2,11 @@ circle-intel:
   definitions:
     - Eigen3_DIR: '/opt/eigen/share/eigen3/cmake'
 
+# Compiler errors due to some undefined alignment primitive
 circle-pgi:
+  skip_generators:
+    - 'Unix Makefiles'
+    - 'Ninja'
   definitions:
     - Eigen3_DIR: '/opt/eigen/share/eigen3/cmake'
 

chapter-03/recipe-08/cxx-example/menu.yml

@@ -3,6 +3,12 @@ appveyor-vs:
     - BOOST_ROOT: 'C:\Libraries\boost_1_67_0'
     - CMAKE_CXX_FLAGS: '-DBOOST_ALL_NO_LIB'  
 
+# PGI and Boost do not get along
+circle-pgi:
+  skip_generators:
+    - 'Unix Makefiles'
+    - 'Ninja'
+
 travis-osx:
   definitions:
     - BOOST_ROOT: '/usr/local/opt/boost@1.59'

chapter-03/recipe-09/c-example/menu.yml

@@ -1,3 +1,9 @@
 appveyor-vs:
   failing_generators:
     - 'Visual Studio 15 2017 Win64'
+
+# Fails to generate imported target for ZeroMQ
+circle-pgi:
+  skip_generators:
+    - 'Unix Makefiles'
+    - 'Ninja'

chapter-03/recipe-10/c-example/FindZeroMQ.cmake

@@ -46,7 +46,13 @@ if(ZeroMQ_INCLUDE_DIRS)
   endif()
 
   if(NOT ${CMAKE_C_PLATFORM_ID} STREQUAL "Windows")
-    find_library(ZeroMQ_LIBRARIES NAMES zmq HINTS ${_ZeroMQ_ROOT}/lib)
+    find_library(ZeroMQ_LIBRARIES 
+        NAMES 
+          zmq 
+        HINTS 
+          ${_ZeroMQ_ROOT}/lib
+          ${_ZeroMQ_ROOT}/lib/x86_64-linux-gnu
+        )
   else()
     find_library(ZeroMQ_LIBRARIES
         NAMES