appveyor: Don't compile OpenSSL for the Release-NoHTTP configuration.

The dependency isn't needed in this case, and it speeds up
the test considerably.

Signed-off-by: Ralph Giles <giles@thaumas.net>

appveyor.yml

@@ -14,7 +14,7 @@ install:
 - git clone -q https://github.com/xiph/ogg.git ogg
 - msbuild opus\win32\VS2015\opus.vcxproj /p:Configuration=%CONFIGURATION:-NoHTTP=%;Platform=%PLATFORM% /m /v:minimal /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
 - msbuild ogg\win32\VS2015\libogg_static.sln /p:Configuration=%CONFIGURATION:-NoHTTP=%;Platform=%PLATFORM% /m /v:minimal /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
-- git clone -q --branch=OpenSSL_1_0_2-stable https://github.com/openssl/openssl.git openssl
+- if %CONFIGURATION:-NoHTTP=%==%CONFIGURATION% git clone -q --branch=OpenSSL_1_0_2-stable https://github.com/openssl/openssl.git openssl
 - ps: >-
         If ($env:Platform -Match "Win32") {
             $env:VCVARS_PLATFORM="x86"
@@ -25,15 +25,15 @@ install:
             $env:OPENSSL_TARGET="VC-WIN64A"
             $env:DO="do_win64a"
         }
-- call "%VS140COMNTOOLS%\..\..\VC\vcvarsall.bat" %VCVARS_PLATFORM%
-- cd openssl
+- if %CONFIGURATION:-NoHTTP=%==%CONFIGURATION% call "%VS140COMNTOOLS%\..\..\VC\vcvarsall.bat" %VCVARS_PLATFORM%
+- if %CONFIGURATION:-NoHTTP=%==%CONFIGURATION% cd openssl
 # without prefix, libs end up in out32 for both 32 and 64-bit
-- perl Configure %OPENSSL_TARGET% no-asm --prefix=%CD%\%PLATFORM%\Release
-- call ms\%DO%
-- nmake /f ms\nt.mak
-- nmake /f ms\nt.mak install
+- if %CONFIGURATION:-NoHTTP=%==%CONFIGURATION% perl Configure %OPENSSL_TARGET% no-asm --prefix=%CD%\%PLATFORM%\Release
+- if %CONFIGURATION:-NoHTTP=%==%CONFIGURATION% call ms\%DO%
+- if %CONFIGURATION:-NoHTTP=%==%CONFIGURATION% nmake /f ms\nt.mak
+- if %CONFIGURATION:-NoHTTP=%==%CONFIGURATION% nmake /f ms\nt.mak install
 # prevents warning 4099 on linking
-- copy /B tmp32\lib.pdb %CD%\%PLATFORM%\Release\lib\lib.pdb
+- if %CONFIGURATION:-NoHTTP=%==%CONFIGURATION% copy /B tmp32\lib.pdb %CD%\%PLATFORM%\Release\lib\lib.pdb
 - cd %APPVEYOR_BUILD_FOLDER%
 
 build: