Fix target pdfmanual when using ninja

Fix instructions in Macports, add instructions for Homebrew

CMakeLists.txt

@@ -2179,6 +2179,21 @@ if(DOXYGEN_FOUND)
     set(HAVE_DOT ${DOXYGEN_DOT_FOUND})
     file(TO_NATIVE_PATH ${CMAKE_SOURCE_DIR} top_srcdir)
     file(TO_NATIVE_PATH ${CMAKE_BINARY_DIR} top_builddir)
+    set(PDFMANUAL_MAKE_PROGRAM ${CMAKE_MAKE_PROGRAM})
+    if(PDFMANUAL_MAKE_PROGRAM MATCHES "ninja")
+        find_program(PDFMANUAL_MAKE_EXECUTABLE make
+            PATHS
+                /usr/bin
+                /usr/local/bin
+        )
+        if(NOT PDFMANUAL_MAKE_EXECUTABLE)
+            if(PDFLATEX_COMPILER)
+                message(STATUS "Warning: make is required to build the PDF manual, so target pdfmanual will not be generated.")
+            endif()
+            set(PDFLATEX_COMPILER FALSE)
+        endif()
+        set(PDFMANUAL_MAKE_PROGRAM ${PDFMANUAL_MAKE_EXECUTABLE})
+    endif()
     if(PDFLATEX_COMPILER)
         set(GENERATE_PDF_DOCUMENTATION "YES")
         set(GNSSSDR_USE_MATHJAX "NO")
@@ -2193,17 +2208,17 @@ if(DOXYGEN_FOUND)
     add_custom_target(doc
         ${DOXYGEN_EXECUTABLE} ${CMAKE_BINARY_DIR}/docs/doxygen/Doxyfile
         WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
-        COMMENT "Generating source code documentation with Doxygen." VERBATIM
+        COMMENT "Generating HTML documentation from source code with Doxygen..." VERBATIM
     )
     if(PDFLATEX_COMPILER)
         message(STATUS " '${CMAKE_MAKE_PROGRAM_PRETTY_NAME} pdfmanual' will generate a manual at ${CMAKE_BINARY_DIR}/docs/GNSS-SDR_manual.pdf")
         add_custom_target(pdfmanual
-            COMMAND ${CMAKE_MAKE_PROGRAM}
+            COMMAND ${PDFMANUAL_MAKE_PROGRAM}
             COMMAND ${CMAKE_COMMAND} -E copy refman.pdf ${CMAKE_BINARY_DIR}/docs/GNSS-SDR_manual.pdf
-            COMMAND ${CMAKE_MAKE_PROGRAM} clean
+            COMMAND ${PDFMANUAL_MAKE_PROGRAM} clean
             DEPENDS doc
             WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/docs/latex
-            COMMENT "Generating PDF manual with Doxygen." VERBATIM
+            COMMENT "Generating PDF manual with LaTeX and pdflatex..." VERBATIM
         )
     endif()
     message(STATUS " '${CMAKE_MAKE_PROGRAM_PRETTY_NAME} doc-clean' will clean the documentation.")
@@ -2225,7 +2240,8 @@ else()
         endif()
     endif()
     if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-        message(STATUS " or simply by doing 'sudo port install doxygen +latex'.")
+        message(STATUS " or simply by doing 'sudo port install doxygen +docs', if you are using Macports,")
+        message(STATUS " or 'brew cask install mactex', then restart Terminal and do 'brew install graphviz doxygen', if you use Homebrew.")
     endif()
 endif()
 

README.md

@@ -596,20 +596,12 @@ In a terminal, type:
 ~~~~~~
 $ sudo port selfupdate
 $ sudo port upgrade outdated
-$ sudo port install pkgconfig
+$ sudo port install armadillo cmake gnuradio gnutls lapack libad9361-iio libiio \
-$ sudo port install gnuradio
+    matio pkgconfig protobuf3-cpp pugixml
-$ sudo port install lapack
-$ sudo port install armadillo
-$ sudo port install gnutls
 $ sudo port install google-glog +gflags
-$ sudo port install matio
+$ sudo port install doxygen +docs
-$ sudo port install pugixml
-$ sudo port install protobuf3-cpp
-$ sudo port install libiio
-$ sudo port install libad9361-iio
 $ sudo port install py37-mako
 $ sudo port install py37-six
-$ sudo port install doxygen +docs
 ~~~~~~
 
 You also might need to activate a Python installation. The list of installed versions can be retrieved with:
@@ -644,21 +636,13 @@ $ sudo python3 get-pip.py
 Install the required dependencies:
 
 ~~~~~~
-$ brew install cmake
+$ brew update && brew upgrade
-$ brew install pkg-config
+$ brew install armadillo cmake hdf5 gflags glog gnuradio lapack libmatio log4cpp \
-$ brew install hdf5
+    openssl pkg-config protobuf pugixml
-$ brew install lapack
-$ brew install armadillo
-$ brew install gflags
-$ brew install glog
-$ brew install gnuradio
-$ brew install libmatio
-$ brew install log4cpp
-$ brew install openssl
-$ brew install pugixml
-$ brew install protobuf
 $ pip3 install mako
 $ pip3 install six
+$ brew cask install mactex  # when completed, restart Terminal
+$ brew install graphviz doxygen
 ~~~~~~