relax libnng requirement to 1.9.0

Author: shikokuchuo

DESCRIPTION

@@ -25,7 +25,7 @@ License: GPL (>= 3)
 BugReports: https://github.com/shikokuchuo/nanonext/issues
 URL: https://shikokuchuo.net/nanonext/, https://github.com/shikokuchuo/nanonext/
 Encoding: UTF-8
-SystemRequirements: 'libnng' >= 1.6 and 'libmbedtls' >= 2.5, or 'cmake' and 'xz'
+SystemRequirements: 'libnng' >= 1.9 and 'libmbedtls' >= 2.5, or 'cmake' and 'xz'
     to compile NNG and/or Mbed TLS included in package sources
 Depends: 
     R (>= 3.6)

NEWS.md

@@ -6,7 +6,7 @@
 * The abillity to `lock()` and `unlock()` sockets is removed.
 * Renders it safe to serialize 'nano' and 'aio' objects - they will be inactive when unserialized.
 * Unified Windows build system now compiles 'libmbedtls' and 'libnng' from source even on R <= 4.1 using Rtools40 or earlier.
-* Requires 'libnng' >= 1.10.0.
+* Requires 'libnng' >= 1.9.0.
 
 # nanonext 1.5.0
 

README.Rmd

@@ -145,7 +145,7 @@ install.packages("nanonext", repos = "https://shikokuchuo.r-universe.dev")
 
 #### Linux / Mac / Solaris
 
-Installation from source requires 'libnng' >= v1.10.0 and 'libmbedtls' >= 2.5.0 (suitable installations are automatically detected), or else 'cmake' to compile 'libnng' v1.10.1 and 'libmbedtls' v3.6.2 included within the package sources.
+Installation from source requires 'libnng' >= v1.9.0 and 'libmbedtls' >= 2.5.0 (suitable installations are automatically detected), or else 'cmake' to compile 'libnng' v1.10.1 and 'libmbedtls' v3.6.2 included within the package sources.
 
 **It is recommended for optimal performance and stability to let the package automatically compile bundled versions of 'libmbedtls' and 'libnng' during installation.** To ensure the libraries are compiled from source even if system installations are present, set the `NANONEXT_LIBS` environment variable prior to installation e.g. by `Sys.setenv(NANONEXT_LIBS = 1)`.
 

README.md

@@ -174,7 +174,7 @@ install.packages("nanonext", repos = "https://shikokuchuo.r-universe.dev")
 
 #### Linux / Mac / Solaris
 
-Installation from source requires ‘libnng’ \>= v1.10.0 and ‘libmbedtls’
+Installation from source requires ‘libnng’ \>= v1.9.0 and ‘libmbedtls’
 \>= 2.5.0 (suitable installations are automatically detected), or else
 ‘cmake’ to compile ‘libnng’ v1.10.1 and ‘libmbedtls’ v3.6.2 included
 within the package sources.

configure

@@ -70,7 +70,7 @@ fi
 
 if [ $? -ne 0 ]
 then
-  echo "Existing 'libmbedtls' >= 2.5 not found"
+  echo "Existing 'libmbedtls' >= 2.5.0 not found"
   echo "Detecting 'cmake'..."
   which cmake
   if [ $? -ne 0 ]
@@ -128,7 +128,7 @@ fi
 
 echo "#include <nng/nng.h>
 int main() {
-#if NNG_MAJOR_VERSION < 1 || NNG_MAJOR_VERSION == 1 && NNG_MINOR_VERSION < 10
+#if NNG_MAJOR_VERSION < 1 || NNG_MAJOR_VERSION == 1 && NNG_MINOR_VERSION < 9
     *(void *) 0 = 0;
 #endif
 }" | ${CC} ${NNG_CFLAGS} -xc - -o /dev/null > /dev/null 2>&1
@@ -140,7 +140,7 @@ fi
 
 if [ $? -ne 0 ]
 then
-  echo "Existing 'libnng' >= 1.10 not found"
+  echo "Existing 'libnng' >= 1.9.0 not found"
   echo "Detecting 'cmake'..."
   which cmake
   if [ $? -ne 0 ]