From a8aeaf6e851490861d97b8c5f5e64704d6914fd1 Mon Sep 17 00:00:00 2001
From: Julian Ospald <hasufell@posteo.de>
Date: Sat, 22 Sep 2018 16:02:26 +0800
Subject: [PATCH] dev-lang/GHC: fix manpage alternatives

---
 packages/dev-lang/GHC/GHC-8.2.2-r1.exheres-0 | 14 ++++++++++++++
 packages/dev-lang/GHC/GHC-8.4.3-r1.exheres-0 | 19 ++++++++++---------
 packages/dev-lang/GHC/GHC-8.6.1.exheres-0    | 18 ++++++++++--------
 3 files changed, 34 insertions(+), 17 deletions(-)

diff --git a/packages/dev-lang/GHC/GHC-8.2.2-r1.exheres-0 b/packages/dev-lang/GHC/GHC-8.2.2-r1.exheres-0
index 363554b4..3deb8ccd 100644
--- a/packages/dev-lang/GHC/GHC-8.2.2-r1.exheres-0
+++ b/packages/dev-lang/GHC/GHC-8.2.2-r1.exheres-0
@@ -160,6 +160,20 @@ src_install() {
         /usr/$(exhost --target)/bin/hsc2hs{,-${SLOT}} \
         /usr/$(exhost --target)/bin/runghc{,-${SLOT}} \
         /usr/$(exhost --target)/bin/runhaskell /usr/$(exhost --target)/bin/runghc-${SLOT}
+
+    if [[ -d ${IMAGE}/usr/share/man ]]; then
+        local file alternatives=()
+        for file in "${IMAGE}"/usr/share/man/*/*; do
+            alternatives+=(
+            ${file#${IMAGE}}
+            ${file#${IMAGE}}-${SLOT}
+            )
+        done
+
+        alternatives_for \
+            ghc ${SLOT} ${SLOT} \
+            "${alternatives[@]}"
+    fi
 }
 
 src_test_expensive() {
diff --git a/packages/dev-lang/GHC/GHC-8.4.3-r1.exheres-0 b/packages/dev-lang/GHC/GHC-8.4.3-r1.exheres-0
index 21e5dad1..b8a724d8 100644
--- a/packages/dev-lang/GHC/GHC-8.4.3-r1.exheres-0
+++ b/packages/dev-lang/GHC/GHC-8.4.3-r1.exheres-0
@@ -158,18 +158,19 @@ src_install() {
         /usr/$(exhost --target)/bin/runghc{,-${SLOT}} \
         /usr/$(exhost --target)/bin/runhaskell /usr/$(exhost --target)/bin/runghc-${SLOT}
 
-    # alternatives for manpages
-    local file alternatives=()
-    for file in "${IMAGE}"/usr/share/man/*/*; do
-        alternatives+=(
+    if [[ -d ${IMAGE}/usr/share/man ]]; then
+        local file alternatives=()
+        for file in "${IMAGE}"/usr/share/man/*/*; do
+            alternatives+=(
             ${file#${IMAGE}}
             ${file#${IMAGE}}-${SLOT}
-        )
-    done
+            )
+        done
 
-    alternatives_for \
-        ghc ${SLOT} ${SLOT} \
-        "${alternatives[@]}"
+        alternatives_for \
+            ghc ${SLOT} ${SLOT} \
+            "${alternatives[@]}"
+    fi
 }
 
 src_test_expensive() {
diff --git a/packages/dev-lang/GHC/GHC-8.6.1.exheres-0 b/packages/dev-lang/GHC/GHC-8.6.1.exheres-0
index 21e5dad1..b917cf03 100644
--- a/packages/dev-lang/GHC/GHC-8.6.1.exheres-0
+++ b/packages/dev-lang/GHC/GHC-8.6.1.exheres-0
@@ -159,17 +159,19 @@ src_install() {
         /usr/$(exhost --target)/bin/runhaskell /usr/$(exhost --target)/bin/runghc-${SLOT}
 
     # alternatives for manpages
-    local file alternatives=()
-    for file in "${IMAGE}"/usr/share/man/*/*; do
-        alternatives+=(
+    if [[ -d ${IMAGE}/usr/share/man ]]; then
+        local file alternatives=()
+        for file in "${IMAGE}"/usr/share/man/*/*; do
+            alternatives+=(
             ${file#${IMAGE}}
             ${file#${IMAGE}}-${SLOT}
-        )
-    done
+            )
+        done
 
-    alternatives_for \
-        ghc ${SLOT} ${SLOT} \
-        "${alternatives[@]}"
+        alternatives_for \
+            ghc ${SLOT} ${SLOT} \
+            "${alternatives[@]}"
+    fi
 }
 
 src_test_expensive() {