Merge branch 'boost_upgrade'

(cherry picked from commit 7b52139)

.github/workflows/linux-clang.yml

@@ -16,8 +16,8 @@ env:
   CACHE_REV:        0
   CONCURRENT_BUILD: 4
   DOXYGEN_VER:      1.9.1
-  BOOST_VER:        1_75_0
-  BOOST_VER_DOT:    1.75.0
+  BOOST_VER:        1_76_0
+  BOOST_VER_DOT:    1.76.0
 
 jobs:
   build:

.github/workflows/linux-gcc.yml

@@ -15,8 +15,8 @@ on:
 env:
   CACHE_REV:        0
   CONCURRENT_BUILD: 4
-  BOOST_VER:        1_75_0
-  BOOST_VER_DOT:    1.75.0
+  BOOST_VER:        1_76_0
+  BOOST_VER_DOT:    1.76.0
 
 jobs:
   build:

.github/workflows/windows-visualcpp.yml

@@ -16,8 +16,8 @@ env:
   CACHE_REV:        0
   TETENGO_VER:      1.3.4
   CONCURRENT_BUILD: 4
-  BOOST_VER:        1_75_0
-  BOOST_VER_DOT:    1.75.0
+  BOOST_VER:        1_76_0
+  BOOST_VER_DOT:    1.76.0
 
 jobs:
   build:

README.md

@@ -58,7 +58,7 @@ How to Build and Install
 #### Requirements
 
 - [Visual Studio 2019](https://visualstudio.microsoft.com/)
-- [Boost C++ libraries 1.75.0](https://www.boost.org/)
+- [Boost C++ libraries 1.76.0](https://www.boost.org/)
 - [Doxygen 1.9.1](https://www.doxygen.nl/)
 - [Graphviz](https://www.graphviz.org/)
 - [Python 3.7](https://www.python.org/),
@@ -123,7 +123,7 @@ Doxygen will output the documents into the directory `doc`.
   [Clang 11.0.0](https://clang.llvm.org/),
   [GCC 8.3.0](https://gcc.gnu.org/) or
   [GCC 10.2.0](https://gcc.gnu.org/)
-- [Boost C++ libraries 1.75.0](https://www.boost.org/)
+- [Boost C++ libraries 1.76.0](https://www.boost.org/)
 - [Doxygen 1.9.1](https://www.doxygen.nl/)
 - [Graphviz](https://www.graphviz.org/)
 - [include-what-you-use 0.11](https://include-what-you-use.org/) or

configure.ac

@@ -144,7 +144,7 @@ AC_SUBST([CFLAGS], "${CFLAGS} ${PTHREAD_CFLAGS}")
 AC_SUBST([CXXFLAGS], "${CXXFLAGS} ${PTHREAD_CFLAGS}")
 AC_SUBST([CC], "${PTHREAD_CC}")
 
-AX_BOOST_BASE([1.75.0])
+AX_BOOST_BASE([1.76.0])
 AX_BOOST_UNIT_TEST_FRAMEWORK
 AC_SUBST([LDFLAGS], "${LDFLAGS} ${BOOST_LDFLAGS}")
 AC_SUBST([LIBS], "-lstdc++fs -lstdc++ ${LIBS}")